/* Copyright (C) 2000-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc. 2010 Oracle and/or its affiliates 2009-2011 Monty Program Ab 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define DEFINE_VARIABLES_LOG_SLOW // Declare variables in log_slow.h #include "mysql_priv.h" #include #include #include #include "slave.h" #include "rpl_mi.h" #include "sql_repl.h" #include "rpl_filter.h" #include "client_settings.h" #include "repl_failsafe.h" #include #include "mysqld_suffix.h" #include "mysys_err.h" #include "events.h" #include #include "debug_sync.h" #include "../storage/myisam/ha_myisam.h" #include "rpl_injector.h" #ifdef HAVE_SYS_PRCTL_H #include #endif #ifdef WITH_NDBCLUSTER_STORAGE_ENGINE #if defined(NOT_ENOUGH_TESTED) \ && defined(NDB_SHM_TRANSPORTER) && MYSQL_VERSION_ID >= 50000 #define OPT_NDB_SHM_DEFAULT 1 #else #define OPT_NDB_SHM_DEFAULT 0 #endif #endif #ifndef DEFAULT_SKIP_THREAD_PRIORITY #define DEFAULT_SKIP_THREAD_PRIORITY 0 #endif #include #include #include #include "sp_rcontext.h" #include "sp_cache.h" #define mysqld_charset &my_charset_latin1 #if SIZEOF_CHARP == 4 #define MAX_MEM_TABLE_SIZE ~(ulong) 0 #else #define MAX_MEM_TABLE_SIZE ~(ulonglong) 0 #endif /* We have HAVE_valgrind below as this speeds up the shutdown of MySQL */ #if defined(HAVE_DEC_3_2_THREADS) || defined(SIGNALS_DONT_BREAK_READ) || defined(HAVE_valgrind) && defined(__linux__) #define HAVE_CLOSE_SERVER_SOCK 1 #endif extern "C" { // Because of SCO 3.2V4.2 #include #include #ifndef __GNU_LIBRARY__ #define __GNU_LIBRARY__ // Skip warnings in getopt.h #endif #include #ifdef HAVE_SYSENT_H #include #endif #ifdef HAVE_PWD_H #include // For getpwent #endif #ifdef HAVE_GRP_H #include #endif #include #if !defined(__WIN__) # ifndef __NETWARE__ #include # endif /* __NETWARE__ */ #ifdef HAVE_SYS_UN_H # include #endif #include #ifdef HAVE_SELECT_H # include #endif #ifdef HAVE_SYS_SELECT_H #include #endif #include #endif /* __WIN__ */ #include #ifdef HAVE_SYS_MMAN_H #include #endif #ifdef __WIN__ #include #define SIGNAL_FMT "exception 0x%x" #else #define SIGNAL_FMT "signal %d" #endif #ifdef __NETWARE__ #define zVOLSTATE_ACTIVE 6 #define zVOLSTATE_DEACTIVE 2 #define zVOLSTATE_MAINTENANCE 3 #undef __event_h__ #include <../include/event.h> /* This #undef exists here because both libc of NetWare and MySQL have files named event.h which causes compilation errors. */ #include #include #include #include #include //For NEB #include //For NEB #include //For NEB #include //For NSS event structures #include static void *neb_consumer_id= NULL; //For storing NEB consumer id static char datavolname[256]= {0}; static VolumeID_t datavolid; static event_handle_t eh; static Report_t ref; static void *refneb= NULL; my_bool event_flag= FALSE; static int volumeid= -1; /* NEB event callback */ unsigned long neb_event_callback(struct EventBlock *eblock); static void registerwithneb(); static void getvolumename(); static void getvolumeID(BYTE *volumeName); #endif /* __NETWARE__ */ #ifdef _AIX41 int initgroups(const char *,unsigned int); #endif #if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H) #include #ifdef HAVE_FP_EXCEPT // Fix type conflict typedef fp_except fp_except_t; #endif #endif /* __FreeBSD__ && HAVE_IEEEFP_H */ #ifdef HAVE_SYS_FPU_H /* for IRIX to use set_fpc_csr() */ #include #endif #ifdef HAVE_FPU_CONTROL_H #include #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 extern "C" my_bool reopen_fstreams(const char *filename, FILE *outstream, FILE *errstream); inline void setup_fpu() { #if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H) /* 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 */ #if defined(__i386__) 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 /* __i386__ */ #endif /* __FreeBSD__ && HAVE_IEEEFP_H */ #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 #ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R #include #else #include // For thr_setconcurency() #endif #ifdef SOLARIS extern "C" int gethostname(char *name, int namelen); #endif extern "C" sig_handler handle_segfault(int sig); #if defined(__linux__) #define ENABLE_TEMP_POOL 1 #else #define ENABLE_TEMP_POOL 0 #endif /* Constants */ const char *show_comp_option_name[]= {"YES", "NO", "DISABLED"}; /* WARNING: When adding new SQL modes don't forget to update the tables definitions that stores it's value. (ie: mysql.event, mysql.proc) */ static const char *sql_mode_names[]= { "REAL_AS_FLOAT", "PIPES_AS_CONCAT", "ANSI_QUOTES", "IGNORE_SPACE", "IGNORE_BAD_TABLE_OPTIONS", "ONLY_FULL_GROUP_BY", "NO_UNSIGNED_SUBTRACTION", "NO_DIR_IN_CREATE", "POSTGRESQL", "ORACLE", "MSSQL", "DB2", "MAXDB", "NO_KEY_OPTIONS", "NO_TABLE_OPTIONS", "NO_FIELD_OPTIONS", "MYSQL323", "MYSQL40", "ANSI", "NO_AUTO_VALUE_ON_ZERO", "NO_BACKSLASH_ESCAPES", "STRICT_TRANS_TABLES", "STRICT_ALL_TABLES", "NO_ZERO_IN_DATE", "NO_ZERO_DATE", "ALLOW_INVALID_DATES", "ERROR_FOR_DIVISION_BY_ZERO", "TRADITIONAL", "NO_AUTO_CREATE_USER", "HIGH_NOT_PRECEDENCE", "NO_ENGINE_SUBSTITUTION", "PAD_CHAR_TO_FULL_LENGTH", NullS }; static const unsigned int sql_mode_names_len[]= { /*REAL_AS_FLOAT*/ 13, /*PIPES_AS_CONCAT*/ 15, /*ANSI_QUOTES*/ 11, /*IGNORE_SPACE*/ 12, /*IGNORE_BAD_TABLE_OPTIONS*/ 24, /*ONLY_FULL_GROUP_BY*/ 18, /*NO_UNSIGNED_SUBTRACTION*/ 23, /*NO_DIR_IN_CREATE*/ 16, /*POSTGRESQL*/ 10, /*ORACLE*/ 6, /*MSSQL*/ 5, /*DB2*/ 3, /*MAXDB*/ 5, /*NO_KEY_OPTIONS*/ 14, /*NO_TABLE_OPTIONS*/ 16, /*NO_FIELD_OPTIONS*/ 16, /*MYSQL323*/ 8, /*MYSQL40*/ 7, /*ANSI*/ 4, /*NO_AUTO_VALUE_ON_ZERO*/ 21, /*NO_BACKSLASH_ESCAPES*/ 20, /*STRICT_TRANS_TABLES*/ 19, /*STRICT_ALL_TABLES*/ 17, /*NO_ZERO_IN_DATE*/ 15, /*NO_ZERO_DATE*/ 12, /*ALLOW_INVALID_DATES*/ 19, /*ERROR_FOR_DIVISION_BY_ZERO*/ 26, /*TRADITIONAL*/ 11, /*NO_AUTO_CREATE_USER*/ 19, /*HIGH_NOT_PRECEDENCE*/ 19, /*NO_ENGINE_SUBSTITUTION*/ 22, /*PAD_CHAR_TO_FULL_LENGTH*/ 23 }; TYPELIB sql_mode_typelib= { array_elements(sql_mode_names)-1,"", sql_mode_names, (unsigned int *)sql_mode_names_len }; static const char *optimizer_switch_names[]= { "index_merge","index_merge_union","index_merge_sort_union", "index_merge_intersection", #ifndef DBUG_OFF "table_elimination", #endif "default", NullS }; /* Corresponding defines are named OPTIMIZER_SWITCH_XXX */ static const unsigned int optimizer_switch_names_len[]= { sizeof("index_merge") - 1, sizeof("index_merge_union") - 1, sizeof("index_merge_sort_union") - 1, sizeof("index_merge_intersection") - 1, #ifndef DBUG_OFF sizeof("table_elimination") - 1, #endif sizeof("default") - 1 }; TYPELIB optimizer_switch_typelib= { array_elements(optimizer_switch_names)-1,"", optimizer_switch_names, (unsigned int *)optimizer_switch_names_len }; static const char *tc_heuristic_recover_names[]= { "COMMIT", "ROLLBACK", NullS }; static TYPELIB tc_heuristic_recover_typelib= { array_elements(tc_heuristic_recover_names)-1,"", tc_heuristic_recover_names, NULL }; static const char *thread_handling_names[]= { "one-thread-per-connection", "no-threads", #if HAVE_POOL_OF_THREADS == 1 "pool-of-threads", #endif NullS}; TYPELIB thread_handling_typelib= { array_elements(thread_handling_names) - 1, "", thread_handling_names, NULL }; const char *plugin_maturity_names[]= { "unknown", "experimental", "alpha", "beta", "gamma", "stable", 0 }; TYPELIB plugin_maturity_values= { array_elements(plugin_maturity_names) - 1, "", plugin_maturity_names, 0 }; const int server_maturity= MariaDB_PLUGIN_MATURITY_UNKNOWN; const char *first_keyword= "first", *binary_keyword= "BINARY"; const char *my_localhost= "localhost", *delayed_user= "DELAYED"; #if SIZEOF_OFF_T > 4 && defined(BIG_TABLES) #define GET_HA_ROWS GET_ULL #else #define GET_HA_ROWS GET_ULONG #endif bool opt_large_files= sizeof(my_off_t) > 4; /* Used with --help for detailed option */ static my_bool opt_help= 0, opt_verbose= 0; arg_cmp_func Arg_comparator::comparator_matrix[5][2] = {{&Arg_comparator::compare_string, &Arg_comparator::compare_e_string}, {&Arg_comparator::compare_real, &Arg_comparator::compare_e_real}, {&Arg_comparator::compare_int_signed, &Arg_comparator::compare_e_int}, {&Arg_comparator::compare_row, &Arg_comparator::compare_e_row}, {&Arg_comparator::compare_decimal, &Arg_comparator::compare_e_decimal}}; const char *log_output_names[] = { "NONE", "FILE", "TABLE", NullS}; static const unsigned int log_output_names_len[]= { 4, 4, 5, 0 }; TYPELIB log_output_typelib= {array_elements(log_output_names)-1,"", log_output_names, (unsigned int *) log_output_names_len}; /* static variables */ /* the default log output is log tables */ static bool lower_case_table_names_used= 0; static bool max_long_data_size_used= false; static bool volatile select_thread_in_use, signal_thread_in_use; static bool volatile ready_to_exit; static my_bool opt_debugging= 0, opt_external_locking= 0, opt_console= 0; static my_bool opt_short_log_format= 0; static my_bool opt_ignore_wrong_options= 0, opt_expect_abort= 0; static my_bool opt_sync= 0; static uint kill_cached_threads, wake_thread; ulong thread_created; uint thread_handling; static ulong max_used_connections; static ulong my_bind_addr; /**< the address we bind to */ static volatile ulong cached_thread_count= 0; static const char *sql_mode_str= "OFF"; /* Text representation for OPTIMIZER_SWITCH_DEFAULT */ static const char *optimizer_switch_str="index_merge=on,index_merge_union=on," "index_merge_sort_union=on," "index_merge_intersection=on" #ifndef DBUG_OFF ",table_elimination=on"; #else ; #endif #ifdef SAFEMALLOC my_bool sf_malloc_trough_check= 0; #endif static char *mysqld_user, *mysqld_chroot, *log_error_file_ptr; static char *opt_init_slave, *language_ptr, *opt_init_connect; static char *default_character_set_name; static char *character_set_filesystem_name; static char *lc_time_names_name; static char *my_bind_addr_str; static char *default_collation_name; static char *default_storage_engine_str; static char compiled_default_collation_name[]= MYSQL_DEFAULT_COLLATION_NAME; static I_List thread_cache; static double long_query_time; static ulong opt_my_crc_dbug_check; static pthread_cond_t COND_thread_cache, COND_flush_thread_cache; /* Global variables */ bool opt_update_log, opt_bin_log, opt_ignore_builtin_innodb= 0; my_bool opt_log, opt_slow_log, debug_assert_if_crashed_table; my_bool opt_userstat_running; ulong log_output_options; my_bool opt_log_queries_not_using_indexes= 0; 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 server_id_supplied = 0; bool opt_endinfo, using_udf_functions; my_bool locked_in_memory; bool opt_using_transactions; bool volatile abort_loop; bool volatile shutdown_in_progress; /* True if the bootstrap thread is running. Protected by LOCK_thread_count, just like thread_count. Used in bootstrap() function to determine if the bootstrap thread has completed. Note, that we can't use 'thread_count' instead, since in 5.1, in presence of the Event Scheduler, there may be event threads running in parallel, so it's impossible to know what value of 'thread_count' is a sign of completion of the bootstrap thread. At the same time, we can't start the event scheduler after bootstrap either, since we want to be able to process event-related SQL commands in the init file and in --bootstrap mode. */ bool in_bootstrap= FALSE; /** @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, opt_no_mix_types = 0; my_bool opt_show_slave_auth_info, opt_sql_bin_update = 0; my_bool opt_log_slave_updates= 0; bool slave_warning_issued = false; /* Legacy global handlerton. These will be removed (please do not add more). */ handlerton *heap_hton; handlerton *myisam_hton; handlerton *partition_hton; #ifdef WITH_NDBCLUSTER_STORAGE_ENGINE const char *opt_ndbcluster_connectstring= 0; const char *opt_ndb_connectstring= 0; char opt_ndb_constrbuf[1024]= {0}; unsigned opt_ndb_constrbuf_len= 0; my_bool opt_ndb_shm, opt_ndb_optimized_node_selection; ulong opt_ndb_cache_check_time; const char *opt_ndb_mgmd; ulong opt_ndb_nodeid; ulong ndb_extra_logging; #ifdef HAVE_NDB_BINLOG ulong ndb_report_thresh_binlog_epoch_slip; ulong ndb_report_thresh_binlog_mem_usage; #endif extern const char *ndb_distribution_names[]; extern TYPELIB ndb_distribution_typelib; extern const char *opt_ndb_distribution; extern enum ndb_distribution opt_ndb_distribution_id; #endif my_bool opt_readonly, use_temp_pool, relay_log_purge; my_bool opt_sync_frm, opt_allow_suspicious_udfs; my_bool opt_secure_auth= 0; char* opt_secure_file_priv= 0; my_bool opt_log_slow_admin_statements= 0; my_bool opt_log_slow_slave_statements= 0; my_bool lower_case_file_system= 0; my_bool opt_large_pages= 0; my_bool opt_myisam_use_mmap= 0; uint opt_large_page_size= 0; #if defined(ENABLED_DEBUG_SYNC) uint opt_debug_sync_timeout= 0; #endif /* defined(ENABLED_DEBUG_SYNC) */ my_bool opt_old_style_user_limits= 0, trust_function_creators= 0; /* 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; const char *binlog_format_names[]= {"MIXED", "STATEMENT", "ROW", NullS}; TYPELIB binlog_format_typelib= { array_elements(binlog_format_names) - 1, "", binlog_format_names, NULL }; ulong opt_binlog_format_id= (ulong) BINLOG_FORMAT_UNSPEC; const char *opt_binlog_format= binlog_format_names[opt_binlog_format_id]; #ifdef HAVE_INITGROUPS static bool calling_initgroups= FALSE; /**< Used in SIGSEGV handler. */ #endif uint mysqld_port, test_flags, select_errors, dropping_tables, ha_open_options; uint mysqld_extra_port; uint mysqld_port_timeout; uint delay_key_write_options, protocol_version; uint lower_case_table_names; uint tc_heuristic_recover= 0; uint volatile thread_count, thread_running; ulonglong thd_startup_options; ulong back_log, connect_timeout, concurrency, server_id; ulong table_cache_size, table_def_size; ulong what_to_log; ulong query_buff_size, slow_launch_time, slave_open_temp_tables; ulong open_files_limit, max_binlog_size, max_relay_log_size; ulong slave_net_timeout, slave_trans_retries; ulong slave_exec_mode_options; static const char *slave_exec_mode_str= "STRICT"; ulong thread_cache_size=0, thread_pool_size= 0; ulong binlog_cache_size=0; ulonglong max_binlog_cache_size=0; ulong query_cache_size=0; ulong refresh_version; /* Increments on each reload */ query_id_t global_query_id; ulong aborted_threads, aborted_connects; 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 specialflag=0; ulong binlog_cache_use= 0, binlog_cache_disk_use= 0; ulong max_connections, max_connect_errors; ulong extra_max_connections; /* Maximum length of parameter value which can be set through mysql_send_long_data() call. */ ulong max_long_data_size; uint max_user_connections= 0; ulonglong denied_connections; /** Limit of the total number of prepared statements in the server. Is necessary to protect the server against out-of-memory attacks. */ ulong 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. */ ulong prepared_stmt_count=0; ulong thread_id=1L,current_pid; ulong slow_launch_threads = 0, sync_binlog_period; ulong expire_logs_days = 0; ulong rpl_recovery_rank=0; const char *log_output_str= "FILE"; 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], language[FN_REFLEN], reg_ext[FN_EXTLEN], mysql_charsets_dir[FN_REFLEN], *opt_init_file, *opt_tc_log_file, def_ft_boolean_syntax[sizeof(ft_boolean_syntax)]; char mysql_unpacked_real_data_home[FN_REFLEN]; int mysql_unpacked_real_data_home_len; uint reg_ext_length; const key_map key_map_empty(0); key_map key_map_full(0); // Will be initialized later const char *opt_date_time_formats[3]; uint mysql_data_home_len; char mysql_data_home_buff[2], *mysql_data_home=mysql_real_data_home; char server_version[SERVER_VERSION_LENGTH]; char *mysqld_unix_port, *opt_mysql_tmpdir; const char **errmesg; /**< Error messages */ const char *myisam_recover_options_str="OFF"; const char *myisam_stats_method_str="nulls_unequal"; const char *opt_thread_handling= thread_handling_typelib.type_names[0]; /** name of reference on left espression in rewritten IN subquery */ const char *in_left_expr_name= ""; /** name of additional condition */ const char *in_additional_cond= ""; const char *in_having_cond= ""; my_decimal decimal_zero; /* 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; FILE *bootstrap_file; int bootstrap_error; FILE *stderror_file=0; I_List threads; I_List key_caches; Rpl_filter* rpl_filter; Rpl_filter* binlog_filter; struct system_variables global_system_variables; struct system_variables max_system_variables; struct system_status_var global_status_var; MY_TMPDIR mysql_tmpdir_list; MY_BITMAP temp_pool; CHARSET_INFO *system_charset_info, *files_charset_info ; CHARSET_INFO *national_charset_info, *table_alias_charset; CHARSET_INFO *character_set_filesystem; 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_community_features; /* Thread specific variables */ pthread_key(MEM_ROOT**,THR_MALLOC); pthread_key(THD*, THR_THD); pthread_mutex_t LOCK_mysql_create_db, LOCK_Acl, LOCK_open, LOCK_thread_count, LOCK_mapped_file, LOCK_status, LOCK_global_read_lock, LOCK_error_log, LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_bytes_sent, LOCK_bytes_received, LOCK_global_system_variables, LOCK_user_conn, LOCK_slave_list, LOCK_active_mi, LOCK_connection_count, LOCK_short_uuid_generator; pthread_mutex_t LOCK_stats, LOCK_global_user_client_stats; pthread_mutex_t LOCK_global_table_stats, LOCK_global_index_stats; /** 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. */ pthread_mutex_t LOCK_prepared_stmt_count; #ifdef HAVE_OPENSSL pthread_mutex_t LOCK_des_key_file; #endif rw_lock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave; rw_lock_t LOCK_system_variables_hash; pthread_cond_t COND_refresh, COND_thread_count, COND_global_read_lock; pthread_t signal_thread; pthread_attr_t connection_attrib; pthread_mutex_t LOCK_server_started; pthread_cond_t COND_server_started; int mysqld_server_started= 0; File_parser_dummy_hook file_parser_dummy_hook; /* replication parameters, if master_host is not NULL, we are a slave */ uint master_port= MYSQL_PORT, master_connect_retry = 60; uint report_port= MYSQL_PORT; ulong master_retry_count=0; char *master_user, *master_password, *master_host, *master_info_file; char *relay_log_info_file; char *report_user, *report_password, *report_host; char *opt_relay_logname = 0, *opt_relaylog_index_name=0; my_bool master_ssl; char *master_ssl_key, *master_ssl_cert; char *master_ssl_ca, *master_ssl_capath, *master_ssl_cipher; char *opt_logname, *opt_slow_logname; /* Static variables */ static bool kill_in_progress, segfaulted; static my_bool opt_stack_trace; static my_bool opt_bootstrap, opt_myisam_log; static int cleanup_done; static ulong opt_specialflag, opt_myisam_block_size; static char *opt_update_logname, *opt_binlog_index_name; static char *opt_tc_heuristic_recover; static char *mysql_home_ptr, *pidfile_name_ptr; static int defaults_argc; static char **defaults_argv; static char *opt_bin_logname; int orig_argc; char **orig_argv; static my_socket unix_sock, base_ip_sock, extra_ip_sock; struct my_rnd_struct sql_rand; ///< used by sql_class.cc:THD::THD() #ifndef EMBEDDED_LIBRARY struct passwd *user_info; static pthread_t select_thread; #endif /* OS specific variables */ #ifdef __WIN__ #undef getpid #include static pthread_cond_t COND_handler_count; static uint handler_count; static bool start_mode=0, use_opt_args; static int opt_argc; static char **opt_argv; #if !defined(EMBEDDED_LIBRARY) static HANDLE hEventShutdown; static char shutdown_event_name[40]; #include "nt_servc.h" static NTService Service; ///< Service object for WinNT #endif /* EMBEDDED_LIBRARY */ #endif /* __WIN__ */ #ifdef __NT__ static char pipe_name[512]; static SECURITY_ATTRIBUTES saPipeSecurity; static SECURITY_DESCRIPTOR sdPipeDescriptor; static HANDLE hPipe = INVALID_HANDLE_VALUE; #endif #ifndef EMBEDDED_LIBRARY bool mysqld_embedded=0; #else bool mysqld_embedded=1; #endif static my_bool plugins_are_initialized= FALSE; #ifndef DBUG_OFF static const char* default_dbug_option, *current_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 static ulong query_cache_limit= 0; ulong query_cache_min_res_unit= QUERY_CACHE_MIN_RESULT_DATA_SIZE; Query_cache query_cache; #endif #ifdef HAVE_SMEM char *shared_memory_base_name= default_shared_memory_base_name; my_bool opt_enable_shared_memory; HANDLE smem_event_connect_request= 0; #endif scheduler_functions thread_scheduler, extra_thread_scheduler; #define SSL_VARS_NOT_STATIC #include "sslopt-vars.h" #ifdef HAVE_OPENSSL #include #ifndef HAVE_YASSL typedef struct CRYPTO_dynlock_value { rw_lock_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); static unsigned long openssl_id_function(); #endif char *des_key_file; struct st_VioSSLFd *ssl_acceptor_fd; #endif /* HAVE_OPENSSL */ /** Number of currently active user connections. The variable is protected by LOCK_connection_count. */ uint connection_count= 0, extra_connection_count= 0; /* Function declarations */ pthread_handler_t signal_hand(void *arg); static int mysql_init_variables(void); static int get_options(int *argc,char **argv); extern "C" my_bool mysqld_get_one_option(int, const struct my_option *, char *); static void set_server_version(void); static int init_thread_environment(); static char *get_relative_path(const char *path); static int fix_paths(void); pthread_handler_t handle_connections_sockets(void *arg); pthread_handler_t kill_server_thread(void *arg); static void bootstrap(FILE *file); static bool read_init_file(char *file_name); #ifdef __NT__ pthread_handler_t handle_connections_namedpipes(void *arg); #endif #ifdef HAVE_SMEM pthread_handler_t handle_connections_shared_memory(void *arg); #endif pthread_handler_t handle_slave(void *arg); static ulong find_bit_type(const char *x, TYPELIB *bit_lib); static ulong find_bit_type_or_exit(const char *x, TYPELIB *bit_lib, const char *option, int *error); static void clean_up(bool print_message); static int test_if_case_insensitive(const char *dir_name); static void register_mutex_order(); #ifndef EMBEDDED_LIBRARY static void usage(void); static void start_signal_handler(void); static void close_server_sock(); static void clean_up_mutexes(void); static void wait_for_signal_thread_to_end(void); static void create_pid_file(); static void end_ssl(); #endif #ifndef EMBEDDED_LIBRARY /**************************************************************************** ** Code to end mysqld ****************************************************************************/ static void close_connections(void) { #ifdef EXTRA_DEBUG int count=0; #endif DBUG_ENTER("close_connections"); /* Clear thread cache */ kill_cached_threads++; flush_thread_cache(); /* kill connection thread */ #if !defined(__WIN__) && !defined(__NETWARE__) DBUG_PRINT("quit", ("waiting for select thread: 0x%lx", (ulong) select_thread)); (void) pthread_mutex_lock(&LOCK_thread_count); while (select_thread_in_use) { struct timespec abstime; int error; LINT_INIT(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=pthread_cond_timedwait(&COND_thread_count,&LOCK_thread_count, &abstime); if (error != EINTR) break; } #ifdef EXTRA_DEBUG if (error != 0 && error != ETIMEDOUT && !count++) sql_print_error("Got error %d from pthread_cond_timedwait",error); #endif close_server_sock(); } (void) pthread_mutex_unlock(&LOCK_thread_count); #endif /* __WIN__ */ /* Abort listening to new connections */ DBUG_PRINT("quit",("Closing sockets")); if (!opt_disable_networking ) { if (base_ip_sock != INVALID_SOCKET) { (void) shutdown(base_ip_sock, SHUT_RDWR); (void) closesocket(base_ip_sock); base_ip_sock= INVALID_SOCKET; } if (extra_ip_sock != INVALID_SOCKET) { (void) shutdown(extra_ip_sock, SHUT_RDWR); (void) closesocket(extra_ip_sock); extra_ip_sock= INVALID_SOCKET; } } #ifdef __NT__ if (hPipe != INVALID_HANDLE_VALUE && opt_enable_named_pipe) { HANDLE temp; DBUG_PRINT("quit", ("Closing named pipes") ); /* Create connection to the handle named pipe handler to break the loop */ if ((temp = CreateFile(pipe_name, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL )) != INVALID_HANDLE_VALUE) { WaitNamedPipe(pipe_name, 1000); DWORD dwMode = PIPE_READMODE_BYTE | PIPE_WAIT; SetNamedPipeHandleState(temp, &dwMode, NULL, NULL); CancelIo(temp); DisconnectNamedPipe(temp); CloseHandle(temp); } } #endif #ifdef HAVE_SYS_UN_H if (unix_sock != INVALID_SOCKET) { (void) shutdown(unix_sock, SHUT_RDWR); (void) closesocket(unix_sock); (void) unlink(mysqld_unix_port); unix_sock= INVALID_SOCKET; } #endif end_thr_alarm(0); // Abort old alarms. /* 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. */ THD *tmp; (void) pthread_mutex_lock(&LOCK_thread_count); // For unlink from list I_List_iterator it(threads); while ((tmp=it++)) { DBUG_PRINT("quit",("Informing thread %ld that it's time to die", tmp->thread_id)); /* We skip slave threads & scheduler on this first loop through. */ if (tmp->slave_thread) continue; tmp->killed= THD::KILL_CONNECTION; thread_scheduler.post_kill_notification(tmp); pthread_mutex_lock(&tmp->LOCK_thd_data); if (tmp->mysys_var) { tmp->mysys_var->abort=1; pthread_mutex_lock(&tmp->mysys_var->mutex); if (tmp->mysys_var->current_cond) { uint i; for (i=0; i < 2; i++) { int ret= pthread_mutex_trylock(tmp->mysys_var->current_mutex); pthread_cond_broadcast(tmp->mysys_var->current_cond); if (!ret) { /* Thread has surely got the signal, unlock and abort */ pthread_mutex_unlock(tmp->mysys_var->current_mutex); break; } sleep(1); } } pthread_mutex_unlock(&tmp->mysys_var->mutex); } pthread_mutex_unlock(&tmp->LOCK_thd_data); } (void) pthread_mutex_unlock(&LOCK_thread_count); // For unlink from list Events::deinit(); end_slave(); /* Give threads time to die. */ for (int i= 0; thread_count && i < 100; i++) my_sleep(20000); /* Force remaining threads to die by closing the connection to the client This will ensure that threads that are waiting for a command from the client on a blocking read call are aborted. */ for (;;) { DBUG_PRINT("quit",("Locking LOCK_thread_count")); (void) pthread_mutex_lock(&LOCK_thread_count); // For unlink from list if (!(tmp=threads.get())) { DBUG_PRINT("quit",("Unlocking LOCK_thread_count")); (void) pthread_mutex_unlock(&LOCK_thread_count); break; } #ifndef __bsdi__ // Bug in BSDI kernel if (tmp->vio_ok()) { if (global_system_variables.log_warnings) sql_print_warning(ER(ER_FORCING_CLOSE),my_progname, tmp->thread_id, (tmp->main_security_ctx.user ? tmp->main_security_ctx.user : "")); close_connection(tmp,ER_SERVER_SHUTDOWN,0); } #endif DBUG_PRINT("quit",("Unlocking LOCK_thread_count")); (void) pthread_mutex_unlock(&LOCK_thread_count); } /* All threads has now been aborted */ DBUG_PRINT("quit",("Waiting for threads to die (count=%u)",thread_count)); (void) pthread_mutex_lock(&LOCK_thread_count); while (thread_count) { (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count); DBUG_PRINT("quit",("One thread died (count=%u)",thread_count)); } (void) pthread_mutex_unlock(&LOCK_thread_count); close_active_mi(); DBUG_PRINT("quit",("close_connections thread")); DBUG_VOID_RETURN; } #ifdef HAVE_CLOSE_SERVER_SOCK static void close_socket(my_socket sock, const char *info) { DBUG_ENTER("close_socket"); if (sock != INVALID_SOCKET) { DBUG_PRINT("info", ("calling shutdown on %s socket", info)); (void) shutdown(sock, SHUT_RDWR); #if defined(__NETWARE__) /* The following code is disabled for normal systems as it causes MySQL to hang on AIX 4.3 during shutdown */ DBUG_PRINT("info", ("calling closesocket on %s socket", info)); (void) closesocket(tmp_sock); #endif } DBUG_VOID_RETURN; } #endif static void close_server_sock() { #ifdef HAVE_CLOSE_SERVER_SOCK DBUG_ENTER("close_server_sock"); close_socket(base_ip_sock, "TCP/IP"); close_socket(extra_ip_sock, "TCP/IP"); close_socket(unix_sock, "unix/IP"); if (unix_sock != INVALID_SOCKET) VOID(unlink(mysqld_unix_port)); base_ip_sock= extra_ip_sock= unix_sock= INVALID_SOCKET; DBUG_VOID_RETURN; #endif } #endif /*EMBEDDED_LIBRARY*/ void kill_mysql(void) { DBUG_ENTER("kill_mysql"); #if defined(SIGNALS_DONT_BREAK_READ) && !defined(EMBEDDED_LIBRARY) abort_loop=1; // Break connection loops close_server_sock(); // Force accept to wake up #endif #if defined(__WIN__) #if !defined(EMBEDDED_LIBRARY) { if (!SetEvent(hEventShutdown)) { DBUG_PRINT("error",("Got error: %ld from SetEvent",GetLastError())); } /* or: HANDLE hEvent=OpenEvent(0, FALSE, "MySqlShutdown"); SetEvent(hEventShutdown); CloseHandle(hEvent); */ } #endif #elif defined(HAVE_PTHREAD_KILL) if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL)) { DBUG_PRINT("error",("Got error %d from pthread_kill",errno)); /* purecov: inspected */ } #elif !defined(SIGNALS_DONT_BREAK_READ) kill(current_pid, MYSQL_KILL_SIGNAL); #endif DBUG_PRINT("quit",("After pthread_kill")); shutdown_in_progress=1; // Safety if kill didn't work #ifdef SIGNALS_DONT_BREAK_READ if (!kill_in_progress) { pthread_t tmp; abort_loop=1; if (pthread_create(&tmp,&connection_attrib, kill_server_thread, (void*) 0)) sql_print_error("Can't create thread to kill server"); } #endif DBUG_VOID_RETURN; } /** Force server down. Kill all connections and threads and exit. @param sig_ptr Signal number that caused kill_server to be called. @note A signal number of 0 mean that the function was not called from a signal handler and there is thus no signal to block or stop, we just want to kill the server. */ #if defined(__NETWARE__) extern "C" void kill_server(int sig_ptr) #define RETURN_FROM_KILL_SERVER return #elif !defined(__WIN__) static void *kill_server(void *sig_ptr) #define RETURN_FROM_KILL_SERVER return 0 #else static void __cdecl kill_server(int sig_ptr) #define RETURN_FROM_KILL_SERVER return #endif { DBUG_ENTER("kill_server"); #ifndef EMBEDDED_LIBRARY int sig=(int) (long) sig_ptr; // This is passed a int // if there is a signal during the kill in progress, ignore the other if (kill_in_progress) // Safety { DBUG_LEAVE; RETURN_FROM_KILL_SERVER; } kill_in_progress=TRUE; abort_loop=1; // This should be set if (sig != 0) // 0 is not a valid signal number my_sigset(sig, SIG_IGN); /* purify inspected */ if (sig == MYSQL_KILL_SIGNAL || sig == 0) sql_print_information(ER(ER_NORMAL_SHUTDOWN),my_progname); else sql_print_error(ER(ER_GOT_SIGNAL),my_progname,sig); /* purecov: inspected */ #if defined(HAVE_SMEM) && defined(__WIN__) /* Send event to smem_event_connect_request for aborting */ if (opt_enable_shared_memory) { if (!SetEvent(smem_event_connect_request)) { DBUG_PRINT("error", ("Got error: %ld from SetEvent of smem_event_connect_request", GetLastError())); } } #endif close_connections(); if (sig != MYSQL_KILL_SIGNAL && sig != 0) unireg_abort(1); /* purecov: inspected */ else unireg_end(); /* purecov: begin deadcode */ #ifdef __NETWARE__ if (!event_flag) pthread_join(select_thread, NULL); // wait for main thread #endif /* __NETWARE__ */ DBUG_LEAVE; // Must match DBUG_ENTER() my_thread_end(); pthread_exit(0); /* purecov: end */ RETURN_FROM_KILL_SERVER; // Avoid compiler warnings #else /* EMBEDDED_LIBRARY*/ DBUG_LEAVE; RETURN_FROM_KILL_SERVER; #endif /* EMBEDDED_LIBRARY */ } #if defined(USE_ONE_SIGNAL_HAND) || (defined(__NETWARE__) && defined(SIGNALS_DONT_BREAK_READ)) pthread_handler_t kill_server_thread(void *arg __attribute__((unused))) { my_thread_init(); // Initialize new thread kill_server(0); /* purecov: begin deadcode */ my_thread_end(); pthread_exit(0); return 0; /* purecov: end */ } #endif extern "C" sig_handler print_signal_warning(int sig) { if (global_system_variables.log_warnings) sql_print_warning("Got signal %d from thread %ld", sig,my_thread_id()); #ifdef SIGNAL_HANDLER_RESET_ON_DELIVERY my_sigset(sig,print_signal_warning); /* int. thread system calls */ #endif #if !defined(__WIN__) && !defined(__NETWARE__) if (sig == SIGALRM) alarm(2); /* reschedule alarm */ #endif } #ifndef EMBEDDED_LIBRARY /** cleanup all memory and end program nicely. If SIGNALS_DONT_BREAK_READ is defined, this function is called by the main thread. To get MySQL to shut down nicely in this case (Mac OS X) we have to call exit() instead if pthread_exit(). @note This function never returns. */ void unireg_end(void) { clean_up(1); my_thread_end(); #if defined(SIGNALS_DONT_BREAK_READ) && !defined(__NETWARE__) exit(0); #else pthread_exit(0); // Exit is in main thread #endif } extern "C" void unireg_abort(int exit_code) { DBUG_ENTER("unireg_abort"); if (opt_help) usage(); if (exit_code) sql_print_error("Aborting\n"); clean_up(!opt_help && (exit_code || !opt_bootstrap)); /* purecov: inspected */ DBUG_PRINT("quit",("done with cleanup in unireg_abort")); wait_for_signal_thread_to_end(); clean_up_mutexes(); my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0); exit(exit_code); /* purecov: inspected */ } #endif /*EMBEDDED_LIBRARY*/ void clean_up(bool print_message) { DBUG_PRINT("exit",("clean_up")); if (cleanup_done++) return; /* purecov: inspected */ stop_handle_manager(); release_ddl_log(); /* make sure that handlers finish up what they have that is dependent on the binlog */ ha_binlog_end(current_thd); logger.cleanup_base(); injector::free_instance(); mysql_bin_log.cleanup(); #ifdef HAVE_REPLICATION if (use_slave_mask) bitmap_free(&slave_error_mask); #endif my_tz_free(); my_database_names_free(); #ifndef NO_EMBEDDED_ACCESS_CHECKS servers_free(1); acl_free(1); grant_free(); #endif query_cache_destroy(); table_cache_free(); table_def_free(); hostname_cache_free(); item_user_lock_free(); lex_free(); /* Free some memory */ item_create_cleanup(); set_var_free(); free_charsets(); if (!opt_noacl) { #ifdef HAVE_DLOPEN udf_free(); #endif } plugin_shutdown(); ha_end(); if (tc_log) tc_log->close(); xid_cache_free(); wt_end(); delete_elements(&key_caches, (void (*)(const char*, uchar*)) free_key_cache); multi_keycache_free(); sp_cache_end(); free_status_vars(); end_thr_alarm(1); /* Free allocated memory */ my_free_open_file_info(); my_free((char*) global_system_variables.date_format, MYF(MY_ALLOW_ZERO_PTR)); my_free((char*) global_system_variables.time_format, MYF(MY_ALLOW_ZERO_PTR)); my_free((char*) global_system_variables.datetime_format, MYF(MY_ALLOW_ZERO_PTR)); if (defaults_argv) free_defaults(defaults_argv); my_free(sys_init_connect.value, MYF(MY_ALLOW_ZERO_PTR)); my_free(sys_init_slave.value, MYF(MY_ALLOW_ZERO_PTR)); my_free(sys_var_general_log_path.value, MYF(MY_ALLOW_ZERO_PTR)); my_free(sys_var_slow_log_path.value, MYF(MY_ALLOW_ZERO_PTR)); free_tmpdir(&mysql_tmpdir_list); #ifdef HAVE_REPLICATION my_free(slave_load_tmpdir,MYF(MY_ALLOW_ZERO_PTR)); #endif x_free(opt_secure_file_priv); bitmap_free(&temp_pool); free_max_user_conn(); free_global_user_stats(); free_global_client_stats(); free_global_table_stats(); free_global_index_stats(); #ifdef HAVE_REPLICATION end_slave_list(); #endif my_uuid_end(); delete binlog_filter; delete rpl_filter; #ifndef EMBEDDED_LIBRARY end_ssl(); #endif vio_end(); #ifdef USE_REGEX my_regex_end(); #endif #if defined(ENABLED_DEBUG_SYNC) /* End the debug sync facility. See debug_sync.cc. */ debug_sync_end(); #endif /* defined(ENABLED_DEBUG_SYNC) */ #if !defined(EMBEDDED_LIBRARY) if (!opt_bootstrap) (void) my_delete(pidfile_name,MYF(0)); // This may not always exist #endif if (print_message && errmesg && server_start_time) sql_print_information(ER(ER_SHUTDOWN_COMPLETE),my_progname); thread_scheduler.end(); mysql_library_end(); finish_client_errs(); my_free((uchar*) my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST), MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); DBUG_PRINT("quit", ("Error messages freed")); /* Tell main we are ready */ logger.cleanup_end(); (void) pthread_mutex_lock(&LOCK_thread_count); DBUG_PRINT("quit", ("got thread count lock")); ready_to_exit=1; /* do the broadcast inside the lock to ensure that my_end() is not called */ (void) pthread_cond_broadcast(&COND_thread_count); (void) pthread_mutex_unlock(&LOCK_thread_count); /* 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() { #ifndef __NETWARE__ 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 } #endif /*EMBEDDED_LIBRARY*/ static void clean_up_mutexes() { DBUG_ENTER("clean_up_mutexes"); (void) pthread_mutex_destroy(&LOCK_mysql_create_db); (void) pthread_mutex_destroy(&LOCK_lock_db); (void) pthread_mutex_destroy(&LOCK_Acl); (void) rwlock_destroy(&LOCK_grant); (void) pthread_mutex_destroy(&LOCK_open); (void) pthread_mutex_destroy(&LOCK_thread_count); (void) pthread_mutex_destroy(&LOCK_mapped_file); (void) pthread_mutex_destroy(&LOCK_status); (void) pthread_mutex_destroy(&LOCK_error_log); (void) pthread_mutex_destroy(&LOCK_delayed_insert); (void) pthread_mutex_destroy(&LOCK_delayed_status); (void) pthread_mutex_destroy(&LOCK_delayed_create); (void) pthread_mutex_destroy(&LOCK_manager); (void) pthread_mutex_destroy(&LOCK_crypt); (void) pthread_mutex_destroy(&LOCK_bytes_sent); (void) pthread_mutex_destroy(&LOCK_bytes_received); (void) pthread_mutex_destroy(&LOCK_user_conn); (void) pthread_mutex_destroy(&LOCK_connection_count); (void) pthread_mutex_destroy(&LOCK_stats); (void) pthread_mutex_destroy(&LOCK_global_user_client_stats); (void) pthread_mutex_destroy(&LOCK_global_table_stats); (void) pthread_mutex_destroy(&LOCK_global_index_stats); #ifndef EMBEDDED_LIBRARY Events::destroy_mutexes(); #endif /* !EMBEDDED_LIBRARY */ #ifdef HAVE_OPENSSL (void) pthread_mutex_destroy(&LOCK_des_key_file); #ifndef HAVE_YASSL for (int i= 0; i < CRYPTO_num_locks(); ++i) (void) rwlock_destroy(&openssl_stdlocks[i].lock); OPENSSL_free(openssl_stdlocks); #endif /* HAVE_YASSL */ #endif /* HAVE_OPENSSL */ #ifdef HAVE_REPLICATION (void) pthread_mutex_destroy(&LOCK_rpl_status); (void) pthread_cond_destroy(&COND_rpl_status); #endif /* HAVE_REPLICATION */ (void) pthread_mutex_destroy(&LOCK_server_started); (void) pthread_cond_destroy(&COND_server_started); (void) pthread_mutex_destroy(&LOCK_active_mi); (void) rwlock_destroy(&LOCK_sys_init_connect); (void) rwlock_destroy(&LOCK_sys_init_slave); (void) pthread_mutex_destroy(&LOCK_global_system_variables); (void) pthread_mutex_destroy(&LOCK_short_uuid_generator); (void) rwlock_destroy(&LOCK_system_variables_hash); (void) pthread_mutex_destroy(&LOCK_global_read_lock); (void) pthread_mutex_destroy(&LOCK_prepared_stmt_count); (void) pthread_cond_destroy(&COND_thread_count); (void) pthread_cond_destroy(&COND_refresh); (void) pthread_cond_destroy(&COND_global_read_lock); (void) pthread_cond_destroy(&COND_thread_cache); (void) pthread_cond_destroy(&COND_flush_thread_cache); (void) pthread_cond_destroy(&COND_manager); DBUG_VOID_RETURN; } /** Register order of mutex for wrong mutex deadlock detector By aquiring all mutex in order here, the mutex order detector in mysys/thr_mutex.c, will give a warning on first wrong mutex usage! */ #ifdef SAFE_MUTEX #define always_in_that_order(A,B) \ pthread_mutex_lock(A); pthread_mutex_lock(B); \ pthread_mutex_unlock(B); pthread_mutex_unlock(A) #else #define always_in_that_order(A,B) #endif static void register_mutex_order() { /* We must have LOCK_open before LOCK_global_system_variables because LOCK_open is hold while sql_plugin.c::intern_sys_var_ptr() is called. */ always_in_that_order(&LOCK_open, &LOCK_global_system_variables); } #undef always_in_that_order /**************************************************************************** ** Init IP and UNIX socket ****************************************************************************/ #ifndef EMBEDDED_LIBRARY 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 struct servent *serv_ptr; if ((serv_ptr= getservbyname("mysql", "tcp"))) mysqld_port= ntohs((u_short) serv_ptr->s_port); /* purecov: inspected */ #endif if ((env = getenv("MYSQL_TCP_PORT"))) mysqld_port= (uint) atoi(env); /* purecov: inspected */ } if (!mysqld_unix_port) { #ifdef __WIN__ 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; /* purecov: inspected */ } } /* Change to run as another user if started with --user */ static struct passwd *check_user(const char *user) { #if !defined(__WIN__) && !defined(__NETWARE__) struct passwd *tmp_user_info; uid_t user_id= geteuid(); // Don't bother if we aren't superuser if (user_id) { if (user) { /* Don't give a warning, if real user is same as given with --user */ /* purecov: begin tested */ tmp_user_info= getpwnam(user); if ((!tmp_user_info || user_id != tmp_user_info->pw_uid) && global_system_variables.log_warnings) sql_print_warning( "One can only use the --user switch if running as root\n"); /* purecov: end */ } return NULL; } if (!user) { if (!opt_bootstrap) { sql_print_error("Fatal error: Please read \"Security\" section of the manual to find out how to run mysqld as root!\n"); unireg_abort(1); } return NULL; } /* purecov: begin tested */ if (!strcmp(user,"root")) return NULL; // Avoid problem with dynamic libraries if (!(tmp_user_info= getpwnam(user))) { // Allow a numeric uid to be used const char *pos; for (pos= user; my_isdigit(mysqld_charset,*pos); pos++) ; if (*pos) // Not numeric id goto err; if (!(tmp_user_info= getpwuid(atoi(user)))) goto err; } return tmp_user_info; /* purecov: end */ err: sql_print_error("Fatal error: Can't change to run as user '%s' ; Please check that the user exists!\n",user); unireg_abort(1); #ifdef PR_SET_DUMPABLE if (test_flags & TEST_CORE_ON_SIGNAL) { /* inform kernel that process is dumpable */ (void) prctl(PR_SET_DUMPABLE, 1); } #endif #endif return NULL; } static void set_user(const char *user, struct passwd *user_info_arg) { /* purecov: begin tested */ #if !defined(__WIN__) && !defined(__NETWARE__) DBUG_ASSERT(user_info_arg != 0); #ifdef HAVE_INITGROUPS /* 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= TRUE; initgroups((char*) user, user_info_arg->pw_gid); calling_initgroups= FALSE; #endif if (setgid(user_info_arg->pw_gid) == -1) { sql_perror("setgid"); unireg_abort(1); } if (setuid(user_info_arg->pw_uid) == -1) { sql_perror("setuid"); unireg_abort(1); } #endif /* purecov: end */ } static void set_effective_user(struct passwd *user_info_arg) { #if !defined(__WIN__) && !defined(__NETWARE__) 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); } #endif } /** Change root user if started with @c --chroot . */ static void set_root(const char *path) { #if !defined(__WIN__) && !defined(__NETWARE__) if (chroot(path) == -1) { sql_perror("chroot"); unireg_abort(1); } my_setwd("/", MYF(0)); #endif } /** Activate usage of a tcp port */ static my_socket activate_tcp_port(uint port) { struct sockaddr_in IPaddr; my_socket ip_sock; int arg=1; int ret; uint waited; uint this_wait; uint retry; DBUG_ENTER("activate_tcp_port"); DBUG_PRINT("enter",("port: %u", port)); LINT_INIT(ret); ip_sock = socket(AF_INET, SOCK_STREAM, 0); if (ip_sock == INVALID_SOCKET) { DBUG_PRINT("error",("Got error: %d from socket()",socket_errno)); sql_perror(ER(ER_IPSOCK_ERROR)); /* purecov: tested */ unireg_abort(1); /* purecov: tested */ } bzero((char*) &IPaddr, sizeof(IPaddr)); IPaddr.sin_family = AF_INET; IPaddr.sin_addr.s_addr = my_bind_addr; IPaddr.sin_port = (unsigned short) htons((unsigned short) port); #ifndef __WIN__ /* 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. */ (void) setsockopt(ip_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,sizeof(arg)); #endif /* __WIN__ */ /* 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=#). */ for (waited= 0, retry= 1; ; retry++, waited+= this_wait) { if (((ret= bind(ip_sock, my_reinterpret_cast(struct sockaddr *) (&IPaddr), sizeof(IPaddr))) >= 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) { DBUG_PRINT("error",("Got error: %d from bind",socket_errno)); sql_perror("Can't start server: Bind on TCP/IP port"); sql_print_error("Do you already have another mysqld server running on " "port: %u ?", port); unireg_abort(1); } if (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); } DBUG_RETURN(ip_sock); } static void network_init(void) { #ifdef HAVE_SYS_UN_H struct sockaddr_un UNIXaddr; #endif int arg=1; DBUG_ENTER("network_init"); if (thread_scheduler.init()) unireg_abort(1); /* purecov: inspected */ set_ports(); if (!opt_disable_networking && !opt_bootstrap) { if (mysqld_port) base_ip_sock= activate_tcp_port(mysqld_port); if (mysqld_extra_port) extra_ip_sock= activate_tcp_port(mysqld_extra_port); } #ifdef __NT__ /* create named pipe */ if (Service.IsNT() && mysqld_unix_port[0] && !opt_bootstrap && opt_enable_named_pipe) { strxnmov(pipe_name, sizeof(pipe_name)-1, "\\\\.\\pipe\\", mysqld_unix_port, NullS); bzero((char*) &saPipeSecurity, sizeof(saPipeSecurity)); bzero((char*) &sdPipeDescriptor, sizeof(sdPipeDescriptor)); if (!InitializeSecurityDescriptor(&sdPipeDescriptor, SECURITY_DESCRIPTOR_REVISION)) { sql_perror("Can't start server : Initialize security descriptor"); unireg_abort(1); } if (!SetSecurityDescriptorDacl(&sdPipeDescriptor, TRUE, NULL, FALSE)) { sql_perror("Can't start server : Set security descriptor"); unireg_abort(1); } saPipeSecurity.nLength = sizeof(SECURITY_ATTRIBUTES); saPipeSecurity.lpSecurityDescriptor = &sdPipeDescriptor; saPipeSecurity.bInheritHandle = FALSE; if ((hPipe= CreateNamedPipe(pipe_name, PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES, (int) global_system_variables.net_buffer_length, (int) global_system_variables.net_buffer_length, NMPWAIT_USE_DEFAULT_WAIT, &saPipeSecurity)) == INVALID_HANDLE_VALUE) { LPVOID lpMsgBuf; int error=GetLastError(); FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL ); sql_perror((char *)lpMsgBuf); LocalFree(lpMsgBuf); unireg_abort(1); } } #endif #if defined(HAVE_SYS_UN_H) /* ** Create the UNIX socket */ if (mysqld_unix_port[0] && !opt_bootstrap) { DBUG_PRINT("general",("UNIX Socket is %s",mysqld_unix_port)); if (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); } if ((unix_sock= socket(AF_UNIX, SOCK_STREAM, 0)) < 0) { sql_perror("Can't start server : UNIX Socket "); /* purecov: inspected */ unireg_abort(1); /* purecov: inspected */ } bzero((char*) &UNIXaddr, sizeof(UNIXaddr)); UNIXaddr.sun_family = AF_UNIX; strmov(UNIXaddr.sun_path, mysqld_unix_port); (void) unlink(mysqld_unix_port); (void) setsockopt(unix_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg, sizeof(arg)); umask(0); if (bind(unix_sock, my_reinterpret_cast(struct sockaddr *) (&UNIXaddr), sizeof(UNIXaddr)) < 0) { sql_perror("Can't start server : Bind on unix socket"); /* purecov: tested */ sql_print_error("Do you already have another mysqld 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 (listen(unix_sock,(int) back_log) < 0) sql_print_warning("listen() on Unix socket failed with error %d", socket_errno); } #endif DBUG_PRINT("info",("server started")); DBUG_VOID_RETURN; } #endif /*!EMBEDDED_LIBRARY*/ #ifndef EMBEDDED_LIBRARY /** Close a connection. @param thd Thread handle @param errcode Error code to print to console @param lock 1 if we have have to lock LOCK_thread_count @note For the connection that is doing shutdown, this is called twice */ void close_connection(THD *thd, uint errcode, bool lock) { st_vio *vio; DBUG_ENTER("close_connection"); DBUG_PRINT("enter",("fd: %s error: '%s'", thd->net.vio ? vio_description(thd->net.vio) : "(not connected)", errcode ? ER(errcode) : "")); if (lock) (void) pthread_mutex_lock(&LOCK_thread_count); thd->killed= THD::KILL_CONNECTION; if (global_system_variables.log_warnings > 3) { Security_context *sctx= &thd->main_security_ctx; sql_print_warning(ER(ER_NEW_ABORTING_CONNECTION), thd->thread_id,(thd->db ? thd->db : "unconnected"), sctx->user ? sctx->user : "unauthenticated", sctx->host_or_ip, (errcode ? ER(errcode) : "CLOSE_CONNECTION")); } if ((vio= thd->net.vio) != 0) { if (errcode) net_send_error(thd, errcode, ER(errcode)); /* purecov: inspected */ vio_close(vio); /* vio is freed in delete thd */ } if (lock) (void) pthread_mutex_unlock(&LOCK_thread_count); DBUG_VOID_RETURN; } #endif /* EMBEDDED_LIBRARY */ /** 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 call kill_mysql() if signal thread is not running */ if (signal_thread_in_use) kill_mysql(); // Take down mysqld nicely DBUG_VOID_RETURN; /* purecov: deadcode */ } /* Unlink thd from global list of available connections and free thd SYNOPSIS unlink_thd() thd Thread handler NOTES LOCK_thread_count is locked and left locked */ void unlink_thd(THD *thd) { DBUG_ENTER("unlink_thd"); DBUG_PRINT("enter", ("thd: 0x%lx", (long) thd)); thd->cleanup(); pthread_mutex_lock(&LOCK_connection_count); (*thd->scheduler->connection_count)--; pthread_mutex_unlock(&LOCK_connection_count); (void) pthread_mutex_lock(&LOCK_thread_count); thread_count--; delete thd; DBUG_VOID_RETURN; } /* Store thread in cache for reuse by new connections SYNOPSIS cache_thread() NOTES LOCK_thread_count has to be locked RETURN 0 Thread was not put in cache 1 Thread is to be reused by new connection. (ie, caller should return, not abort with pthread_exit()) */ static bool cache_thread() { safe_mutex_assert_owner(&LOCK_thread_count); if (cached_thread_count < thread_cache_size && ! abort_loop && !kill_cached_threads) { /* Don't kill the thread, just put it in cache for reuse */ DBUG_PRINT("info", ("Adding thread to cache")); cached_thread_count++; while (!abort_loop && ! wake_thread && ! kill_cached_threads) (void) pthread_cond_wait(&COND_thread_cache, &LOCK_thread_count); cached_thread_count--; if (kill_cached_threads) pthread_cond_signal(&COND_flush_thread_cache); if (wake_thread) { THD *thd; wake_thread--; thd= thread_cache.get(); thd->thread_stack= (char*) &thd; // For store_globals (void) thd->store_globals(); /* THD::mysys_var::abort is associated with physical thread rather than with THD object. So we need to reset this flag before using this thread for handling of new THD object/connection. */ thd->mysys_var->abort= 0; thd->thr_create_utime= my_micro_time(); threads.append(thd); return(1); } } return(0); } /* End thread for the current connection SYNOPSIS one_thread_per_connection_end() thd Thread handler put_in_cache Store thread in cache, if there is room in it Normally this is true in all cases except when we got out of resources initializing the current thread NOTES If thread is cached, we will wait until thread is scheduled to be reused and then we will return. If thread is not cached, we end the thread. RETURN 0 Signal to handle_one_connection to reuse connection */ bool one_thread_per_connection_end(THD *thd, bool put_in_cache) { DBUG_ENTER("one_thread_per_connection_end"); unlink_thd(thd); /* Mark that current_thd is not valid anymore */ my_pthread_setspecific_ptr(THR_THD, 0); if (put_in_cache) put_in_cache= cache_thread(); pthread_mutex_unlock(&LOCK_thread_count); if (put_in_cache) DBUG_RETURN(0); // Thread is reused /* It's safe to broadcast outside a lock (COND... is not deleted here) */ DBUG_PRINT("signal", ("Broadcasting COND_thread_count")); DBUG_LEAVE; // Must match DBUG_ENTER() my_thread_end(); (void) pthread_cond_broadcast(&COND_thread_count); pthread_exit(0); return 0; // Avoid compiler warnings } void flush_thread_cache() { (void) pthread_mutex_lock(&LOCK_thread_count); kill_cached_threads++; while (cached_thread_count) { pthread_cond_broadcast(&COND_thread_cache); pthread_cond_wait(&COND_flush_thread_cache,&LOCK_thread_count); } kill_cached_threads--; (void) pthread_mutex_unlock(&LOCK_thread_count); } /****************************************************************************** Setup a signal thread with handles all signals. Because Linux doesn't support schemas use a mutex to check that the signal thread is ready before continuing ******************************************************************************/ #if defined(__WIN__) /* 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 ) { DBUG_ENTER("console_event_handler"); #ifndef EMBEDDED_LIBRARY if(type == CTRL_C_EVENT) { /* Do not shutdown before startup is finished and shutdown thread is initialized. Otherwise there is a race condition between main thread doing initialization and CTRL-C thread doing cleanup, which can result into crash. */ #ifndef EMBEDDED_LIBRARY if(hEventShutdown) kill_mysql(); else #endif sql_print_warning("CTRL-C ignored during startup"); DBUG_RETURN(TRUE); } #endif DBUG_RETURN(FALSE); } /* In Visual Studio 2005 and later, default SIGABRT handler will overwrite any unhandled exception filter set by the application and will try to call JIT debugger. This is not what we want, this we calling __debugbreak to stop in debugger, if process is being debugged or to generate EXCEPTION_BREAKPOINT and then handle_segfault will do its magic. */ #if (_MSC_VER >= 1400) static void my_sigabrt_handler(int sig) { __debugbreak(); } #endif /*_MSC_VER >=1400 */ void win_install_sigabrt_handler(void) { #if (_MSC_VER >=1400) /*abort() should not override our exception filter*/ _set_abort_behavior(0,_CALL_REPORTFAULT); signal(SIGABRT,my_sigabrt_handler); #endif /* _MSC_VER >=1400 */ } #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 */ 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_segfault(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; } static void init_signals(void) { win_install_sigabrt_handler(); if(opt_console) 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); 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) {} #elif defined(__NETWARE__) /// down server event callback. void mysql_down_server_cb(void *, void *) { event_flag= TRUE; kill_server(0); } /// destroy callback resources. void mysql_cb_destroy(void *) { UnRegisterEventNotification(eh); // cleanup down event notification NX_UNWRAP_INTERFACE(ref); /* Deregister NSS volume deactivation event */ NX_UNWRAP_INTERFACE(refneb); if (neb_consumer_id) UnRegisterConsumer(neb_consumer_id, NULL); } /// initialize callbacks. void mysql_cb_init() { // register for down server event void *handle = getnlmhandle(); rtag_t rt= AllocateResourceTag(handle, "MySQL Down Server Callback", EventSignature); NX_WRAP_INTERFACE((void *)mysql_down_server_cb, 2, (void **)&ref); eh= RegisterForEventNotification(rt, EVENT_PRE_DOWN_SERVER, EVENT_PRIORITY_APPLICATION, NULL, ref, NULL); /* Register for volume deactivation event Wrap the callback function, as it is called by non-LibC thread */ (void *) NX_WRAP_INTERFACE(neb_event_callback, 1, &refneb); registerwithneb(); NXVmRegisterExitHandler(mysql_cb_destroy, NULL); // clean-up } /** To get the name of the NetWare volume having MySQL data folder. */ static void getvolumename() { char *p; /* We assume that data path is already set. If not it won't come here. Terminate after volume name */ if ((p= strchr(mysql_real_data_home, ':'))) strmake(datavolname, mysql_real_data_home, (uint) (p - mysql_real_data_home)); } /** Registering with NEB for NSS Volume Deactivation event. */ static void registerwithneb() { ConsumerRegistrationInfo reg_info; /* Clear NEB registration structure */ bzero((char*) ®_info, sizeof(struct ConsumerRegistrationInfo)); /* Fill the NEB consumer information structure */ reg_info.CRIVersion= 1; // NEB version /* NEB Consumer name */ reg_info.CRIConsumerName= (BYTE *) "MySQL Database Server"; /* Event of interest */ reg_info.CRIEventName= (BYTE *) "NSS.ChangeVolState.Enter"; reg_info.CRIUserParameter= NULL; // Consumer Info reg_info.CRIEventFlags= 0; // Event flags /* Consumer NLM handle */ reg_info.CRIOwnerID= (LoadDefinitionStructure *)getnlmhandle(); reg_info.CRIConsumerESR= NULL; // No consumer ESR required reg_info.CRISecurityToken= 0; // No security token for the event reg_info.CRIConsumerFlags= 0; // SMP_ENABLED_BIT; reg_info.CRIFilterName= 0; // No event filtering reg_info.CRIFilterDataLength= 0; // No filtering data reg_info.CRIFilterData= 0; // No filtering data /* Callback function for the event */ (void *)reg_info.CRIConsumerCallback= (void *) refneb; reg_info.CRIOrder= 0; // Event callback order reg_info.CRIConsumerType= CHECK_CONSUMER; // Consumer type /* Register for the event with NEB */ if (RegisterConsumer(®_info)) { consoleprintf("Failed to register for NSS Volume Deactivation event \n"); return; } /* This ID is required for deregistration */ neb_consumer_id= reg_info.CRIConsumerID; /* Get MySQL data volume name, stored in global variable datavolname */ getvolumename(); /* Get the NSS volume ID of the MySQL Data volume. Volume ID is stored in a global variable */ getvolumeID((BYTE*) datavolname); } /** Callback for NSS Volume Deactivation event. */ ulong neb_event_callback(struct EventBlock *eblock) { EventChangeVolStateEnter_s *voldata; extern bool nw_panic; voldata= (EventChangeVolStateEnter_s *)eblock->EBEventData; /* Deactivation of a volume */ if ((voldata->oldState == zVOLSTATE_ACTIVE && voldata->newState == zVOLSTATE_DEACTIVE || voldata->newState == zVOLSTATE_MAINTENANCE)) { /* Ensure that we bring down MySQL server only for MySQL data volume deactivation */ if (!memcmp(&voldata->volID, &datavolid, sizeof(VolumeID_t))) { consoleprintf("MySQL data volume is deactivated, shutting down MySQL Server \n"); event_flag= TRUE; nw_panic = TRUE; event_flag= TRUE; kill_server(0); } } return 0; } #define ADMIN_VOL_PATH "_ADMIN:/Volumes/" /** Function to get NSS volume ID of the MySQL data. */ static void getvolumeID(BYTE *volumeName) { char path[zMAX_FULL_NAME]; Key_t rootKey= 0, fileKey= 0; QUAD getInfoMask; zInfo_s info; STATUS status; /* Get the root key */ if ((status= zRootKey(0, &rootKey)) != zOK) { consoleprintf("\nGetNSSVolumeProperties - Failed to get root key, status: %d\n.", (int) status); goto exit; } /* Get the file key. This is the key to the volume object in the NSS admin volumes directory. */ strxmov(path, (const char *) ADMIN_VOL_PATH, (const char *) volumeName, NullS); if ((status= zOpen(rootKey, zNSS_TASK, zNSPACE_LONG|zMODE_UTF8, (BYTE *) path, zRR_READ_ACCESS, &fileKey)) != zOK) { consoleprintf("\nGetNSSVolumeProperties - Failed to get file, status: %d\n.", (int) status); goto exit; } getInfoMask= zGET_IDS | zGET_VOLUME_INFO ; if ((status= zGetInfo(fileKey, getInfoMask, sizeof(info), zINFO_VERSION_A, &info)) != zOK) { consoleprintf("\nGetNSSVolumeProperties - Failed in zGetInfo, status: %d\n.", (int) status); goto exit; } /* Copy the data to global variable */ datavolid.timeLow= info.vol.volumeID.timeLow; datavolid.timeMid= info.vol.volumeID.timeMid; datavolid.timeHighAndVersion= info.vol.volumeID.timeHighAndVersion; datavolid.clockSeqHighAndReserved= info.vol.volumeID.clockSeqHighAndReserved; datavolid.clockSeqLow= info.vol.volumeID.clockSeqLow; /* This is guranteed to be 6-byte length (but sizeof() would be better) */ memcpy(datavolid.node, info.vol.volumeID.node, (unsigned int) 6); exit: if (rootKey) zClose(rootKey); if (fileKey) zClose(fileKey); } static void init_signals(void) { int signals[] = {SIGINT,SIGILL,SIGFPE,SIGSEGV,SIGTERM,SIGABRT}; for (uint i=0 ; i < sizeof(signals)/sizeof(int) ; i++) signal(signals[i], kill_server); mysql_cb_init(); // initialize callbacks } static void start_signal_handler(void) { // Save vm id of this process if (!opt_bootstrap) create_pid_file(); // no signal handler } /** Warn if the data is on a Traditional volume. @note Already done by mysqld_safe */ static void check_data_home(const char *path) { } #endif /*__WIN__ || __NETWARE */ #ifdef HAVE_LINUXTHREADS #define UNSAFE_DEFAULT_LINUX_THREADS 200 #endif #if BACKTRACE_DEMANGLE #include extern "C" char *my_demangle(const char *mangled_name, int *status) { return abi::__cxa_demangle(mangled_name, NULL, NULL, status); } #endif extern "C" sig_handler handle_segfault(int sig) { time_t curr_time; struct tm tm; #ifdef HAVE_STACKTRACE THD *thd=current_thd; #endif /* Strictly speaking, one needs a mutex here but since we have got SIGSEGV already, things are a mess so not having the mutex is not as bad as possibly using a buggy mutex - so we keep things simple */ if (segfaulted) { fprintf(stderr, "Fatal " SIGNAL_FMT " while backtracing\n", sig); exit(1); } segfaulted = 1; curr_time= my_time(0); localtime_r(&curr_time, &tm); fprintf(stderr, "%02d%02d%02d %2d:%02d:%02d ", tm.tm_year % 100, tm.tm_mon+1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec); if (opt_expect_abort && sig == SIGABRT) { fprintf(stderr,"[Note] mysqld did an expected abort\n"); goto end; } fprintf(stderr,"[ERROR] mysqld got " SIGNAL_FMT " ;\n\ This could be because you hit a bug. It is also possible that this binary\n\ or one of the libraries it was linked against is corrupt, improperly built,\n\ or misconfigured. This error can also be caused by malfunctioning hardware.\n", sig); fprintf(stderr, "\ We will try our best to scrape up some info that will hopefully help diagnose\n\ the problem, but since we have already crashed, something is definitely wrong\n\ and this may fail.\n\n"); fprintf(stderr, "key_buffer_size=%lu\n", (ulong) dflt_key_cache->key_cache_mem_size); fprintf(stderr, "read_buffer_size=%ld\n", (long) global_system_variables.read_buff_size); fprintf(stderr, "max_used_connections=%lu\n", max_used_connections); fprintf(stderr, "max_threads=%u\n", thread_scheduler.max_threads + (uint) extra_max_connections); fprintf(stderr, "threads_connected=%u\n", thread_count); fprintf(stderr, "It is possible that mysqld could use up to \n\ key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = %lu K\n\ bytes of memory\n", ((ulong) dflt_key_cache->key_cache_mem_size + (global_system_variables.read_buff_size + global_system_variables.sortbuff_size) * (thread_scheduler.max_threads + extra_max_connections) + (max_connections + extra_max_connections)* sizeof(THD)) / 1024); fprintf(stderr, "Hope that's ok; if not, decrease some variables in the equation.\n\n"); #if defined(HAVE_LINUXTHREADS) if (sizeof(char*) == 4 && thread_count > UNSAFE_DEFAULT_LINUX_THREADS) { fprintf(stderr, "\ You seem to be running 32-bit Linux and have %d concurrent connections.\n\ If you have not changed STACK_SIZE in LinuxThreads and built the binary \n\ yourself, LinuxThreads is quite likely to steal a part of the global heap for\n\ the thread stack. Please read http://dev.mysql.com/doc/mysql/en/linux.html\n\n", thread_count); } #endif /* HAVE_LINUXTHREADS */ #ifdef HAVE_STACKTRACE if (opt_stack_trace) { fprintf(stderr, "Thread pointer: 0x%lx\n", (long) thd); fprintf(stderr, "Attempting backtrace. You can use the following " "information to find out\nwhere mysqld died. If " "you see no messages after this, something went\n" "terribly wrong...\n"); my_print_stacktrace(thd ? (uchar*) thd->thread_stack : NULL, my_thread_stack_size); } if (thd) { const char *kreason= "UNKNOWN"; switch (thd->killed) { case THD::NOT_KILLED: kreason= "NOT_KILLED"; break; case THD::KILL_BAD_DATA: kreason= "KILL_BAD_DATA"; break; case THD::KILL_CONNECTION: kreason= "KILL_CONNECTION"; break; case THD::KILL_QUERY: kreason= "KILL_QUERY"; break; case THD::KILL_SYSTEM_THREAD: kreason= "KILL_SYSTEM_THREAD"; break; case THD::KILL_SERVER: kreason= "KILL_SERVER"; break; case THD::KILLED_NO_VALUE: kreason= "KILLED_NO_VALUE"; break; } fprintf(stderr, "\nTrying to get some variables.\n" "Some pointers may be invalid and cause the dump to abort.\n"); fprintf(stderr, "Query (%p): ", thd->query()); my_safe_print_str(thd->query(), min(1024, thd->query_length())); fprintf(stderr, "Connection ID (thread ID): %lu\n", (ulong) thd->thread_id); fprintf(stderr, "Status: %s\n", kreason); fputc('\n', stderr); } fprintf(stderr, "\ The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains\n\ information that should help you find out what is causing the crash.\n"); fflush(stderr); #endif /* HAVE_STACKTRACE */ #ifdef HAVE_INITGROUPS if (calling_initgroups) fprintf(stderr, "\n\ This crash occured while the server was calling initgroups(). This is\n\ often due to the use of a mysqld that is statically linked against glibc\n\ and configured to use LDAP in /etc/nsswitch.conf. You will need to either\n\ upgrade to a version of glibc that does not have this problem (2.3.4 or\n\ later when used with nscd), disable LDAP in your nsswitch.conf, or use a\n\ mysqld that is not statically linked.\n"); #endif #ifdef HAVE_NPTL if (thd_lib_detected == THD_LIB_LT && !getenv("LD_ASSUME_KERNEL")) fprintf(stderr,"\n\ You are running a statically-linked LinuxThreads binary on an NPTL system.\n\ This can result in crashes on some distributions due to LT/NPTL conflicts.\n\ You should either build a dynamically-linked binary, or force LinuxThreads\n\ to be used with the LD_ASSUME_KERNEL environment variable. Please consult\n\ the documentation for your distribution on how to do that.\n"); #endif if (locked_in_memory) { fprintf(stderr, "\n\ The \"--memlock\" argument, which was enabled, uses system calls that are\n\ unreliable and unstable on some operating systems and operating-system\n\ versions (notably, some versions of Linux). This crash could be due to use\n\ of those buggy OS calls. You should consider whether you really need the\n\ \"--memlock\" parameter and/or consult the OS distributer about \"mlockall\"\n\ bugs.\n"); } #ifdef HAVE_WRITE_CORE if (test_flags & TEST_CORE_ON_SIGNAL) { fprintf(stderr, "Writing a core file\n"); fflush(stderr); my_write_core(sig); } #endif end: #ifndef __WIN__ /* Terminate */ exit(1); #else /* On Windows, do not terminate, but pass control to exception filter */ ; #endif } #if !defined(__WIN__) && !defined(__NETWARE__) #ifndef SA_RESETHAND #define SA_RESETHAND 0 #endif #ifndef SA_NODEFER #define SA_NODEFER 0 #endif #ifndef EMBEDDED_LIBRARY static 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); #ifdef HAVE_STACKTRACE my_init_stacktrace(); #endif #if defined(__amiga__) sa.sa_handler=(void(*)())handle_segfault; #else sa.sa_handler=handle_segfault; #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); #ifdef SIGTSTP sigaddset(&set,SIGTSTP); #endif if (thd_lib_detected != THD_LIB_LT) 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); 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); #if !defined(HAVE_DEC_3_2_THREADS) pthread_attr_setscope(&thr_attr,PTHREAD_SCOPE_SYSTEM); (void) pthread_attr_setdetachstate(&thr_attr,PTHREAD_CREATE_DETACHED); if (!(opt_specialflag & SPECIAL_NO_PRIOR)) my_pthread_attr_setprio(&thr_attr,INTERRUPT_PRIOR); #if defined(__ia64__) || defined(__ia64) /* Peculiar things with ia64 platforms - it seems we only have half the stack size in reality, so we have to double it here */ pthread_attr_setstacksize(&thr_attr,my_thread_stack_size*2); #else pthread_attr_setstacksize(&thr_attr,my_thread_stack_size); #endif #endif (void) pthread_mutex_lock(&LOCK_thread_count); if ((error=pthread_create(&signal_thread,&thr_attr,signal_hand,0))) { sql_print_error("Can't create interrupt-thread (error %d, errno: %d)", error,errno); exit(1); } (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count); pthread_mutex_unlock(&LOCK_thread_count); (void) pthread_attr_destroy(&thr_attr); DBUG_VOID_RETURN; } /** 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 pointer there is no other threads running, so there should not be any other pthread_cond_signal() calls. */ (void) pthread_mutex_lock(&LOCK_thread_count); (void) pthread_mutex_unlock(&LOCK_thread_count); (void) pthread_cond_broadcast(&COND_thread_count); (void) pthread_sigmask(SIG_BLOCK,&set,NULL); for (;;) { int error; // Used when debugging if (shutdown_in_progress && !abort_loop) { sig= SIGTERM; error=0; } else while ((error=my_sigwait(&set,&sig)) == EINTR) ; if (cleanup_done) { DBUG_PRINT("quit",("signal_handler: calling my_thread_end()")); my_thread_end(); signal_thread_in_use= 0; DBUG_LEAVE; // Must match DBUG_ENTER() 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 mysqld",sig); #endif /* switch to the old log message processing */ logger.set_handlers(LOG_FILE, opt_slow_log ? 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) { abort_loop=1; // mark abort for threads #ifdef USE_ONE_SIGNAL_HAND pthread_t tmp; if (!(opt_specialflag & SPECIAL_NO_PRIOR)) my_pthread_attr_setprio(&connection_attrib,INTERRUPT_PRIOR); if (pthread_create(&tmp,&connection_attrib, kill_server_thread, (void*) &sig)) sql_print_error("Can't create thread to kill server"); #else kill_server((void*) sig); // MIT THREAD has a alarm thread #endif } break; case SIGHUP: if (!abort_loop) { 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 */ if (log_output_options & LOG_NONE) { logger.set_handlers(LOG_FILE, opt_slow_log ? LOG_TABLE : LOG_NONE, opt_log ? LOG_TABLE : LOG_NONE); } else { logger.set_handlers(LOG_FILE, opt_slow_log ? log_output_options : LOG_NONE, opt_log ? 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 /* __WIN__*/ /** All global error messages are sent here where the first one is stored for the client. */ /* ARGSUSED */ extern "C" int my_message_sql(uint error, const char *str, myf MyFlags); int my_message_sql(uint error, const char *str, myf MyFlags) { THD *thd; MYSQL_ERROR::enum_warning_level level; sql_print_message_func func; DBUG_ENTER("my_message_sql"); DBUG_PRINT("error", ("error: %u message: '%s' Flag: %d", error, str, MyFlags)); DBUG_ASSERT(str != NULL); /* An error should have a valid error number (!= 0), so it can be caught in stored procedures by SQL exception handlers. Calling my_error() with error == 0 is a bug. Remaining known places to fix: - storage/myisam/mi_create.c, my_printf_error() TODO: DBUG_ASSERT(error != 0); */ if (error == 0) { /* At least, prevent new abuse ... */ DBUG_ASSERT(strncmp(str, "MyISAM table", 12) == 0 || strncmp(str, "Aria table", 11) == 0 || (MyFlags & ME_JUST_INFO)); error= ER_UNKNOWN_ERROR; } if (MyFlags & ME_JUST_INFO) { level= MYSQL_ERROR::WARN_LEVEL_NOTE; func= sql_print_information; } else if (MyFlags & ME_JUST_WARNING) { level= MYSQL_ERROR::WARN_LEVEL_WARN; func= sql_print_warning; } else { level= MYSQL_ERROR::WARN_LEVEL_ERROR; func= sql_print_error; } if ((thd= current_thd)) { /* TODO: There are two exceptions mechanism (THD and sp_rcontext), this could be improved by having a common stack of handlers. */ if (thd->handle_error(error, str, level)) { DBUG_PRINT("info", ("error handled by handle_error()")); DBUG_RETURN(0); } if (level == MYSQL_ERROR::WARN_LEVEL_WARN) push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, error, str); if (level != MYSQL_ERROR::WARN_LEVEL_ERROR) goto to_error_log; thd->is_slave_error= 1; // needed to catch query errors during replication /* thd->lex->current_select == 0 if lex structure is not inited (not query command (COM_QUERY)) */ if (thd->lex->current_select && thd->lex->current_select->no_error && !thd->is_fatal_error) { DBUG_PRINT("error", ("Error converted to warning: current_select: no_error %d " "fatal_error: %d", (thd->lex->current_select ? thd->lex->current_select->no_error : 0), (int) thd->is_fatal_error)); } else { if (thd->main_da.is_ok() && !thd->main_da.can_overwrite_status) { /* Client has already got ok packet and we are not in net_flush(), so we write a message to error log. This could happen if we get an error in implicit commit. This should never happen in normal operation, so lets assert here in debug builds. */ DBUG_ASSERT(0); func= sql_print_error; MyFlags|= ME_NOREFRESH; } else if (! thd->main_da.is_error()) // Return only first message { thd->main_da.set_error_status(thd, error, str); } query_cache_abort(&thd->net); } /* If a continue handler is found, the error message will be cleared by the stored procedures code. */ if (thd->spcont && ! (MyFlags & ME_NO_SP_HANDLER) && thd->spcont->handle_error(error, MYSQL_ERROR::WARN_LEVEL_ERROR, thd)) { /* Do not push any warnings, a handled error must be completely silenced. */ DBUG_RETURN(0); } /* When simulating OOM, skip writing to error log to avoid mtr errors */ DBUG_EXECUTE_IF("simulate_out_of_memory", DBUG_RETURN(0);); if (!thd->no_warnings_for_error && !(MyFlags & ME_NO_WARNING_FOR_ERROR)) { /* Suppress infinite recursion if there a memory allocation error inside push_warning. */ thd->no_warnings_for_error= TRUE; push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR, error, str); thd->no_warnings_for_error= FALSE; } } to_error_log: /* When simulating OOM, skip writing to error log to avoid mtr errors */ DBUG_EXECUTE_IF("simulate_out_of_memory", DBUG_RETURN(0);); if (!thd || thd->log_all_errors || (MyFlags & ME_NOREFRESH)) (*func)("%s: %s", my_progname_short, str); /* purecov: inspected */ DBUG_RETURN(0); } #ifndef EMBEDDED_LIBRARY extern "C" void *my_str_malloc_mysqld(size_t size); extern "C" void my_str_free_mysqld(void *ptr); void *my_str_malloc_mysqld(size_t size) { return my_malloc(size, MYF(MY_FAE)); } void my_str_free_mysqld(void *ptr) { my_free((uchar*)ptr, MYF(MY_FAE)); } #endif /* EMBEDDED_LIBRARY */ #ifdef __WIN__ pthread_handler_t handle_shutdown(void *arg) { MSG msg; my_thread_init(); /* this call should create the message queue for this thread */ PeekMessage(&msg, NULL, 1, 65534,PM_NOREMOVE); #if !defined(EMBEDDED_LIBRARY) if (WaitForSingleObject(hEventShutdown,INFINITE)==WAIT_OBJECT_0) #endif /* EMBEDDED_LIBRARY */ kill_server(MYSQL_KILL_SIGNAL); return 0; } #endif const char *load_default_groups[]= { #ifdef WITH_NDBCLUSTER_STORAGE_ENGINE "mysql_cluster", #endif "mysqld", "server", MYSQL_BASE_VERSION, "mariadb", MARIADB_BASE_VERSION, 0, 0}; #if defined(__WIN__) && !defined(EMBEDDED_LIBRARY) static const int load_default_groups_sz= sizeof(load_default_groups)/sizeof(load_default_groups[0]); #endif #ifndef EMBEDDED_LIBRARY static int check_enough_stack_size() { uchar stack_top; return check_stack_overrun(current_thd, STACK_MIN_SIZE, &stack_top); } #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 @note The default value is taken from either opt_date_time_formats[] or the ISO format (ANSI SQL) @retval 0 ok @retval 1 error */ static bool init_global_datetime_format(timestamp_type format_type, DATE_TIME_FORMAT **var_ptr) { /* Get command line option */ const char *str= opt_date_time_formats[format_type]; if (!str) // No specified format { str= get_date_time_format_str(&known_date_time_formats[ISO_FORMAT], format_type); /* Set the "command line" option to point to the generated string so that we can set global formats back to default */ opt_date_time_formats[format_type]= str; } if (!(*var_ptr= date_time_format_make(format_type, str, strlen(str)))) { fprintf(stderr, "Wrong date/time format specifier: %s\n", str); return 1; } return 0; } SHOW_VAR com_status_vars[]= { {"admin_commands", (char*) offsetof(STATUS_VAR, com_other), SHOW_LONG_STATUS}, {"assign_to_keycache", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ASSIGN_TO_KEYCACHE]), SHOW_LONG_STATUS}, {"alter_db", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_DB]), SHOW_LONG_STATUS}, {"alter_db_upgrade", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_DB_UPGRADE]), SHOW_LONG_STATUS}, {"alter_event", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_EVENT]), SHOW_LONG_STATUS}, {"alter_function", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_FUNCTION]), SHOW_LONG_STATUS}, {"alter_procedure", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_PROCEDURE]), SHOW_LONG_STATUS}, {"alter_server", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_SERVER]), SHOW_LONG_STATUS}, {"alter_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_TABLE]), SHOW_LONG_STATUS}, {"alter_tablespace", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_TABLESPACE]), SHOW_LONG_STATUS}, {"analyze", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ANALYZE]), SHOW_LONG_STATUS}, {"backup_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BACKUP_TABLE]), SHOW_LONG_STATUS}, {"begin", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BEGIN]), SHOW_LONG_STATUS}, {"binlog", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BINLOG_BASE64_EVENT]), SHOW_LONG_STATUS}, {"call_procedure", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CALL]), SHOW_LONG_STATUS}, {"change_db", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_DB]), SHOW_LONG_STATUS}, {"change_master", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_MASTER]), SHOW_LONG_STATUS}, {"check", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECK]), SHOW_LONG_STATUS}, {"checksum", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECKSUM]), SHOW_LONG_STATUS}, {"commit", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_COMMIT]), SHOW_LONG_STATUS}, {"create_db", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_DB]), SHOW_LONG_STATUS}, {"create_event", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_EVENT]), SHOW_LONG_STATUS}, {"create_function", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_SPFUNCTION]), SHOW_LONG_STATUS}, {"create_index", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_INDEX]), SHOW_LONG_STATUS}, {"create_procedure", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_PROCEDURE]), SHOW_LONG_STATUS}, {"create_server", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_SERVER]), SHOW_LONG_STATUS}, {"create_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TABLE]), SHOW_LONG_STATUS}, {"create_trigger", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TRIGGER]), SHOW_LONG_STATUS}, {"create_udf", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_FUNCTION]), SHOW_LONG_STATUS}, {"create_user", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_USER]), SHOW_LONG_STATUS}, {"create_view", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_VIEW]), SHOW_LONG_STATUS}, {"dealloc_sql", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DEALLOCATE_PREPARE]), SHOW_LONG_STATUS}, {"delete", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE]), SHOW_LONG_STATUS}, {"delete_multi", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE_MULTI]), SHOW_LONG_STATUS}, {"do", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DO]), SHOW_LONG_STATUS}, {"drop_db", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_DB]), SHOW_LONG_STATUS}, {"drop_event", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_EVENT]), SHOW_LONG_STATUS}, {"drop_function", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_FUNCTION]), SHOW_LONG_STATUS}, {"drop_index", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_INDEX]), SHOW_LONG_STATUS}, {"drop_procedure", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_PROCEDURE]), SHOW_LONG_STATUS}, {"drop_server", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_SERVER]), SHOW_LONG_STATUS}, {"drop_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_TABLE]), SHOW_LONG_STATUS}, {"drop_trigger", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_TRIGGER]), SHOW_LONG_STATUS}, {"drop_user", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_USER]), SHOW_LONG_STATUS}, {"drop_view", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_VIEW]), SHOW_LONG_STATUS}, {"empty_query", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_EMPTY_QUERY]), SHOW_LONG_STATUS}, {"execute_sql", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_EXECUTE]), SHOW_LONG_STATUS}, {"flush", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_FLUSH]), SHOW_LONG_STATUS}, {"grant", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_GRANT]), SHOW_LONG_STATUS}, {"ha_close", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_CLOSE]), SHOW_LONG_STATUS}, {"ha_open", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_OPEN]), SHOW_LONG_STATUS}, {"ha_read", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_READ]), SHOW_LONG_STATUS}, {"help", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HELP]), SHOW_LONG_STATUS}, {"insert", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT]), SHOW_LONG_STATUS}, {"insert_select", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT_SELECT]), SHOW_LONG_STATUS}, {"install_plugin", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSTALL_PLUGIN]), SHOW_LONG_STATUS}, {"kill", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_KILL]), SHOW_LONG_STATUS}, {"load", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD]), SHOW_LONG_STATUS}, {"load_master_data", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_DATA]), SHOW_LONG_STATUS}, {"load_master_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_TABLE]), SHOW_LONG_STATUS}, {"lock_tables", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOCK_TABLES]), SHOW_LONG_STATUS}, {"optimize", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_OPTIMIZE]), SHOW_LONG_STATUS}, {"preload_keys", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PRELOAD_KEYS]), SHOW_LONG_STATUS}, {"prepare_sql", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PREPARE]), SHOW_LONG_STATUS}, {"purge", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE]), SHOW_LONG_STATUS}, {"purge_before_date", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE_BEFORE]), SHOW_LONG_STATUS}, {"release_savepoint", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RELEASE_SAVEPOINT]), SHOW_LONG_STATUS}, {"rename_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RENAME_TABLE]), SHOW_LONG_STATUS}, {"rename_user", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RENAME_USER]), SHOW_LONG_STATUS}, {"repair", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPAIR]), SHOW_LONG_STATUS}, {"replace", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE]), SHOW_LONG_STATUS}, {"replace_select", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE_SELECT]), SHOW_LONG_STATUS}, {"reset", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESET]), SHOW_LONG_STATUS}, {"restore_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESTORE_TABLE]), SHOW_LONG_STATUS}, {"revoke", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE]), SHOW_LONG_STATUS}, {"revoke_all", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE_ALL]), SHOW_LONG_STATUS}, {"rollback", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ROLLBACK]), SHOW_LONG_STATUS}, {"rollback_to_savepoint",(char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ROLLBACK_TO_SAVEPOINT]), SHOW_LONG_STATUS}, {"savepoint", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SAVEPOINT]), SHOW_LONG_STATUS}, {"select", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SELECT]), SHOW_LONG_STATUS}, {"set_option", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SET_OPTION]), SHOW_LONG_STATUS}, {"show_authors", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_AUTHORS]), SHOW_LONG_STATUS}, {"show_binlog_events", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOG_EVENTS]), SHOW_LONG_STATUS}, {"show_binlogs", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOGS]), SHOW_LONG_STATUS}, {"show_charsets", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CHARSETS]), SHOW_LONG_STATUS}, {"show_client_statistics", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CLIENT_STATS]), SHOW_LONG_STATUS}, {"show_collations", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLLATIONS]), SHOW_LONG_STATUS}, {"show_column_types", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLUMN_TYPES]), SHOW_LONG_STATUS}, {"show_contributors", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CONTRIBUTORS]), SHOW_LONG_STATUS}, {"show_create_db", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_DB]), SHOW_LONG_STATUS}, {"show_create_event", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_EVENT]), SHOW_LONG_STATUS}, {"show_create_func", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_FUNC]), SHOW_LONG_STATUS}, {"show_create_proc", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_PROC]), SHOW_LONG_STATUS}, {"show_create_table", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE]), SHOW_LONG_STATUS}, {"show_create_trigger", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_TRIGGER]), SHOW_LONG_STATUS}, {"show_databases", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_DATABASES]), SHOW_LONG_STATUS}, {"show_engine_logs", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_LOGS]), SHOW_LONG_STATUS}, {"show_engine_mutex", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_MUTEX]), SHOW_LONG_STATUS}, {"show_engine_status", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_STATUS]), SHOW_LONG_STATUS}, {"show_events", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_EVENTS]), SHOW_LONG_STATUS}, {"show_errors", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ERRORS]), SHOW_LONG_STATUS}, {"show_fields", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_FIELDS]), SHOW_LONG_STATUS}, #ifndef DBUG_OFF {"show_function_code", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_FUNC_CODE]), SHOW_LONG_STATUS}, #endif {"show_function_status", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS_FUNC]), SHOW_LONG_STATUS}, {"show_grants", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_GRANTS]), SHOW_LONG_STATUS}, {"show_keys", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_KEYS]), SHOW_LONG_STATUS}, {"show_index_statistics", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_INDEX_STATS]), SHOW_LONG_STATUS}, {"show_master_status", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_MASTER_STAT]), SHOW_LONG_STATUS}, {"show_new_master", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_NEW_MASTER]), SHOW_LONG_STATUS}, {"show_open_tables", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_OPEN_TABLES]), SHOW_LONG_STATUS}, {"show_plugins", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PLUGINS]), SHOW_LONG_STATUS}, {"show_privileges", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PRIVILEGES]), SHOW_LONG_STATUS}, #ifndef DBUG_OFF {"show_procedure_code", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROC_CODE]), SHOW_LONG_STATUS}, #endif {"show_procedure_status",(char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS_PROC]), SHOW_LONG_STATUS}, {"show_processlist", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROCESSLIST]), SHOW_LONG_STATUS}, {"show_profile", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROFILE]), SHOW_LONG_STATUS}, {"show_profiles", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROFILES]), SHOW_LONG_STATUS}, {"show_slave_hosts", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_HOSTS]), SHOW_LONG_STATUS}, {"show_slave_status", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_STAT]), SHOW_LONG_STATUS}, {"show_status", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS]), SHOW_LONG_STATUS}, {"show_storage_engines", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STORAGE_ENGINES]), SHOW_LONG_STATUS}, {"show_table_statistics", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TABLE_STATS]), SHOW_LONG_STATUS}, {"show_table_status", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TABLE_STATUS]), SHOW_LONG_STATUS}, {"show_tables", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TABLES]), SHOW_LONG_STATUS}, {"show_triggers", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TRIGGERS]), SHOW_LONG_STATUS}, {"show_user_statistics", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_USER_STATS]), SHOW_LONG_STATUS}, {"show_variables", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_VARIABLES]), SHOW_LONG_STATUS}, {"show_warnings", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_WARNS]), SHOW_LONG_STATUS}, {"slave_start", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_START]), SHOW_LONG_STATUS}, {"slave_stop", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_STOP]), SHOW_LONG_STATUS}, {"stmt_close", (char*) offsetof(STATUS_VAR, com_stmt_close), SHOW_LONG_STATUS}, {"stmt_execute", (char*) offsetof(STATUS_VAR, com_stmt_execute), SHOW_LONG_STATUS}, {"stmt_fetch", (char*) offsetof(STATUS_VAR, com_stmt_fetch), SHOW_LONG_STATUS}, {"stmt_prepare", (char*) offsetof(STATUS_VAR, com_stmt_prepare), SHOW_LONG_STATUS}, {"stmt_reprepare", (char*) offsetof(STATUS_VAR, com_stmt_reprepare), SHOW_LONG_STATUS}, {"stmt_reset", (char*) offsetof(STATUS_VAR, com_stmt_reset), SHOW_LONG_STATUS}, {"stmt_send_long_data", (char*) offsetof(STATUS_VAR, com_stmt_send_long_data), SHOW_LONG_STATUS}, {"truncate", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_TRUNCATE]), SHOW_LONG_STATUS}, {"uninstall_plugin", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UNINSTALL_PLUGIN]), SHOW_LONG_STATUS}, {"unlock_tables", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UNLOCK_TABLES]), SHOW_LONG_STATUS}, {"update", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE]), SHOW_LONG_STATUS}, {"update_multi", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE_MULTI]), SHOW_LONG_STATUS}, {"xa_commit", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_COMMIT]),SHOW_LONG_STATUS}, {"xa_end", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_END]),SHOW_LONG_STATUS}, {"xa_prepare", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_PREPARE]),SHOW_LONG_STATUS}, {"xa_recover", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_RECOVER]),SHOW_LONG_STATUS}, {"xa_rollback", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_ROLLBACK]),SHOW_LONG_STATUS}, {"xa_start", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_START]),SHOW_LONG_STATUS}, {NullS, NullS, SHOW_LONG} }; static int init_common_variables(const char *conf_file_name, int argc, char **argv, const char **groups) { char buff[FN_REFLEN], *s; const char *basename; umask(((~my_umask) & 0666)); my_decimal_set_zero(&decimal_zero); // set decimal_zero constant; tzset(); // Set tzname max_system_variables.pseudo_thread_id= (ulong)~0; server_start_time= flush_status_time= my_time(0); rpl_filter= new Rpl_filter; binlog_filter= new Rpl_filter; if (!rpl_filter || !binlog_filter) { sql_perror("Could not allocate replication and binlog filters"); return 1; } if (init_thread_environment() || mysql_init_variables()) return 1; #ifdef HAVE_TZNAME { struct tm tm_tmp; localtime_r(&server_start_time,&tm_tmp); strmake(system_time_zone, tzname[tm_tmp.tm_isdst != 0 ? 1 : 0], sizeof(system_time_zone)-1); } #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; /* 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 MySQL server doesn't support dates later then 2038"); return 1; } 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); basename= "mysql"; } else { basename= glob_hostname; } strmake(pidfile_name, basename, sizeof(pidfile_name)-5); strmov(fn_ext(pidfile_name),".pid"); // Add proper extension /* 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)) return 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 8 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_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 + 8); #endif orig_argc=argc; orig_argv=argv; load_defaults(conf_file_name, groups, &argc, &argv); defaults_argv=argv; defaults_argc=argc; if (get_options(&defaults_argc, defaults_argv)) return 1; set_server_version(); DBUG_PRINT("info",("%s Ver %s for %s on %s\n",my_progname, server_version, SYSTEM_TYPE,MACHINE_TYPE)); #ifdef HAVE_LARGE_PAGES /* Initialize large page size */ if (opt_large_pages && (opt_large_page_size= my_get_large_page_size())) { my_use_large_pages= 1; my_large_page_size= opt_large_page_size; } #endif /* HAVE_LARGE_PAGES */ /* connections and databases needs lots of files */ { uint files, wanted_files, max_open_files; /* MyISAM requires two file handles per table. */ wanted_files= (10 + max_connections + extra_max_connections + table_cache_size*2); /* 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= max(max(wanted_files, (max_connections + extra_max_connections)*5), open_files_limit); files= my_set_max_open_files(max_open_files); if (files < wanted_files) { if (!open_files_limit) { /* If we have requested too much file handles than we bring max_connections in supported bounds. */ max_connections= (ulong) min(files-10-TABLE_OPEN_CACHE_MIN*2, max_connections); /* Decrease table_cache_size according to max_connections, but not below TABLE_OPEN_CACHE_MIN. Outer min() ensures that we never increase table_cache_size automatically (that could happen if max_connections is decreased above). */ table_cache_size= (ulong) min(max((files-10-max_connections)/2, TABLE_OPEN_CACHE_MIN), table_cache_size); DBUG_PRINT("warning", ("Changed limits: max_open_files: %u max_connections: %ld table_cache: %ld", files, max_connections, table_cache_size)); if (global_system_variables.log_warnings) sql_print_warning("Changed limits: max_open_files: %u max_connections: %ld table_cache: %ld", files, max_connections, table_cache_size); } else if (global_system_variables.log_warnings) sql_print_warning("Could not increase number of max_open_files to more than %u (request: %u)", files, wanted_files); } open_files_limit= files; } unireg_init(opt_specialflag); /* Set up extern variabels */ if (init_errmessage()) /* Read error messages from file */ return 1; init_client_errs(); mysql_library_init(never,never,never); /* for replication */ lex_init(); if (item_create_init()) return 1; item_init(); if (set_var_init()) return 1; #ifdef HAVE_REPLICATION if (init_replication_sys_vars()) return 1; #endif mysys_uses_curses=0; #ifdef USE_REGEX #ifndef EMBEDDED_LIBRARY my_regex_init(&my_charset_latin1, check_enough_stack_size); #else my_regex_init(&my_charset_latin1, NULL); #endif #endif /* 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). */ 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(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(0)); if (!default_collation) { sql_print_error(ER(ER_UNKNOWN_COLLATION), default_collation_name); return 1; } if (!my_charset_same(default_charset_info, default_collation)) { sql_print_error(ER(ER_COLLATION_CHARSET_MISMATCH), default_collation_name, default_charset_info->csname); 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; 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; if (!(character_set_filesystem= get_charset_by_csname(character_set_filesystem_name, MY_CS_PRIMARY, MYF(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; sys_init_connect.value_length= 0; if ((sys_init_connect.value= opt_init_connect)) sys_init_connect.value_length= strlen(opt_init_connect); else sys_init_connect.value=my_strdup("",MYF(0)); sys_init_connect.is_os_charset= TRUE; sys_init_slave.value_length= 0; if ((sys_init_slave.value= opt_init_slave)) sys_init_slave.value_length= strlen(opt_init_slave); else sys_init_slave.value=my_strdup("",MYF(0)); sys_init_slave.is_os_charset= TRUE; /* 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 path was specified for the " "--log option, log tables are used. " "To enable logging to files use the --log-output option."); if (opt_slow_log && opt_slow_logname && *opt_slow_logname && !(log_output_options & (LOG_FILE | LOG_NONE))) sql_print_warning("Although a path was specified for the " "--log_slow_queries option, log tables are used. " "To enable logging to files use the --log-output=file option."); s= opt_logname && *opt_logname ? opt_logname : make_default_log_name(buff, ".log"); sys_var_general_log_path.value= my_strdup(s, MYF(0)); sys_var_general_log_path.value_length= strlen(s); s= opt_slow_logname && *opt_slow_logname ? opt_slow_logname : make_default_log_name(buff, "-slow.log"); sys_var_slow_log_path.value= my_strdup(s, MYF(0)); sys_var_slow_log_path.value_length= strlen(s); #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 && bitmap_init(&temp_pool,0,1024,1)) return 1; #else use_temp_pool= 0; #endif if (my_database_names_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)); lower_case_file_system= test_if_case_insensitive(mysql_real_data_home); if (!lower_case_table_names && lower_case_file_system == 1) { if (lower_case_table_names_used) { if (global_system_variables.log_warnings) sql_print_warning("\ You have forced lower_case_table_names to 0 through a command-line \ option, even though your file system '%s' is case insensitive. This means \ that you can corrupt a MyISAM table by accessing it with different cases. \ You should consider changing lower_case_table_names to 1 or 2", mysql_real_data_home); } 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); lower_case_table_names= 2; } } else if (lower_case_table_names == 2 && !(lower_case_file_system= (test_if_case_insensitive(mysql_real_data_home) == 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); lower_case_table_names= 0; } else { lower_case_file_system= (test_if_case_insensitive(mysql_real_data_home) == 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); return 0; } static int init_thread_environment() { (void) pthread_mutex_init(&LOCK_mysql_create_db,MY_MUTEX_INIT_SLOW); (void) pthread_mutex_init(&LOCK_lock_db,MY_MUTEX_INIT_SLOW); (void) pthread_mutex_init(&LOCK_Acl,MY_MUTEX_INIT_SLOW); (void) pthread_mutex_init(&LOCK_open, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_thread_count,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_mapped_file,MY_MUTEX_INIT_SLOW); (void) pthread_mutex_init(&LOCK_status,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_error_log,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_delayed_insert,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_delayed_status,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_delayed_create,MY_MUTEX_INIT_SLOW); (void) pthread_mutex_init(&LOCK_manager,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_crypt,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_bytes_sent,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_bytes_received,MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_user_conn, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_active_mi, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_global_system_variables, MY_MUTEX_INIT_FAST); (void) my_rwlock_init(&LOCK_system_variables_hash, NULL); (void) pthread_mutex_init(&LOCK_global_read_lock, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_prepared_stmt_count, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_short_uuid_generator, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_connection_count, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_stats, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_global_user_client_stats, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_global_table_stats, MY_MUTEX_INIT_FAST); (void) pthread_mutex_init(&LOCK_global_index_stats, MY_MUTEX_INIT_FAST); #ifdef HAVE_OPENSSL (void) pthread_mutex_init(&LOCK_des_key_file,MY_MUTEX_INIT_FAST); #ifndef HAVE_YASSL openssl_stdlocks= (openssl_lock_t*) OPENSSL_malloc(CRYPTO_num_locks() * sizeof(openssl_lock_t)); for (int i= 0; i < CRYPTO_num_locks(); ++i) (void) my_rwlock_init(&openssl_stdlocks[i].lock, NULL); 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); CRYPTO_set_id_callback(openssl_id_function); #endif #endif (void) my_rwlock_init(&LOCK_sys_init_connect, NULL); (void) my_rwlock_init(&LOCK_sys_init_slave, NULL); (void) my_rwlock_init(&LOCK_grant, NULL); (void) pthread_cond_init(&COND_thread_count,NULL); (void) pthread_cond_init(&COND_refresh,NULL); (void) pthread_cond_init(&COND_global_read_lock,NULL); (void) pthread_cond_init(&COND_thread_cache,NULL); (void) pthread_cond_init(&COND_flush_thread_cache,NULL); (void) pthread_cond_init(&COND_manager,NULL); #ifdef HAVE_REPLICATION (void) pthread_mutex_init(&LOCK_rpl_status, MY_MUTEX_INIT_FAST); (void) pthread_cond_init(&COND_rpl_status, NULL); #endif (void) pthread_mutex_init(&LOCK_server_started, MY_MUTEX_INIT_FAST); (void) pthread_cond_init(&COND_server_started,NULL); sp_cache_init(); #ifdef HAVE_EVENT_SCHEDULER Events::init_mutexes(); #endif /* 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); if (!(opt_specialflag & SPECIAL_NO_PRIOR)) my_pthread_attr_setprio(&connection_attrib,WAIT_PRIOR); if (pthread_key_create(&THR_THD,NULL) || pthread_key_create(&THR_MALLOC,NULL)) { sql_print_error("Can't create thread-keys"); return 1; } register_mutex_order(); return 0; } #if defined(HAVE_OPENSSL) && !defined(HAVE_YASSL) static unsigned long openssl_id_function() { return (unsigned long) pthread_self(); } static openssl_lock_t *openssl_dynlock_create(const char *file, int line) { openssl_lock_t *lock= new openssl_lock_t; my_rwlock_init(&lock->lock, NULL); return lock; } static void openssl_dynlock_destroy(openssl_lock_t *lock, const char *file, int line) { 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 = rw_rdlock(&lock->lock); break; case CRYPTO_LOCK|CRYPTO_WRITE: what = "write lock"; err = rw_wrlock(&lock->lock); break; case CRYPTO_UNLOCK|CRYPTO_READ: case CRYPTO_UNLOCK|CRYPTO_WRITE: what = "unlock"; err = rw_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_OPENSSL */ #ifndef EMBEDDED_LIBRARY static void init_ssl() { #ifdef 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); DBUG_PRINT("info",("ssl_acceptor_fd: 0x%lx", (long) ssl_acceptor_fd)); if (!ssl_acceptor_fd) { sql_print_warning("Failed to setup SSL"); sql_print_warning("SSL error: %s", sslGetErrString(error)); opt_use_ssl = 0; have_ssl= SHOW_OPTION_DISABLED; } } else { have_ssl= SHOW_OPTION_DISABLED; } if (des_key_file) load_des_key_file(des_key_file); #endif /* HAVE_OPENSSL */ } static void end_ssl() { #ifdef HAVE_OPENSSL if (ssl_acceptor_fd) { free_vio_ssl_acceptor_fd(ssl_acceptor_fd); ssl_acceptor_fd= 0; } #endif /* HAVE_OPENSSL */ } #endif /* EMBEDDED_LIBRARY */ #ifdef _WIN32 /** Registers a file to be collected when Windows Error Reporting creates a crash report. @note only works on Vista and later, since WerRegisterFile() is not available on earlier Windows. */ #include static void add_file_to_crash_report(char *file) { /* Load WerRegisterFile function dynamically.*/ HRESULT (WINAPI *pWerRegisterFile)(PCWSTR, WER_REGISTER_FILE_TYPE, DWORD) =(HRESULT (WINAPI *) (PCWSTR, WER_REGISTER_FILE_TYPE, DWORD)) GetProcAddress(GetModuleHandle("kernel32"),"WerRegisterFile"); if (pWerRegisterFile) { wchar_t wfile[MAX_PATH+1]= {0}; if (mbstowcs(wfile, file, MAX_PATH) != (size_t)-1) { pWerRegisterFile(wfile, WerRegFileTypeOther, WER_FILE_ANONYMOUS_DATA); } } } #endif 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 */ if (table_cache_init() | table_def_init() | hostname_cache_init()) unireg_abort(1); query_cache_result_size_limit(query_cache_limit); query_cache_set_min_res_unit(query_cache_min_res_unit); query_cache_init(); query_cache_resize(query_cache_size); my_rnd_init(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2); setup_fpu(); init_thr_lock(); my_uuid_init((ulong) (my_rnd(&sql_rand))*12345,12345); #ifdef HAVE_REPLICATION init_slave_list(); #endif wt_init(); /* Setup logs */ /* 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. */ if (opt_error_log && !opt_help) { if (!log_error_file_ptr[0]) fn_format(log_error_file, pidfile_name, mysql_data_home, ".err", MY_REPLACE_EXT); /* replace '.' by '.err', bug#4997 */ else fn_format(log_error_file, log_error_file_ptr, mysql_data_home, ".err", MY_UNPACK_FILENAME | MY_SAFE_PATH); if (!log_error_file[0]) opt_error_log= 1; // 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= (const char *(*)(void *, const char *, const char *, const char *, const unsigned int)) set_thd_proc_info; if (xid_cache_init()) { sql_print_error("Out of memory"); unireg_abort(1); } /* need to configure logging before initializing storage engines */ if (opt_update_log) { /* Update log is removed since 5.0. But we still accept the option. The idea is if the user already uses the binlog and the update log, we completely ignore any option/variable related to the update log, like if the update log did not exist. But if the user uses only the update log, then we translate everything into binlog for him (with warnings). Implementation of the above : - If mysqld is started with --log-update and --log-bin, ignore --log-update (print a warning), push a warning when SQL_LOG_UPDATE is used, and turn off --sql-bin-update-same. This will completely ignore SQL_LOG_UPDATE - If mysqld is started with --log-update only, change it to --log-bin (with the filename passed to log-update, plus '-bin') (print a warning), push a warning when SQL_LOG_UPDATE is used, and turn on --sql-bin-update-same. This will translate SQL_LOG_UPDATE to SQL_LOG_BIN. Note that we tell the user that --sql-bin-update-same is deprecated and does nothing, and we don't take into account if he used this option or not; but internally we give this variable a value to have the behaviour we want (i.e. have SQL_LOG_UPDATE influence SQL_LOG_BIN or not). As sql-bin-update-same, log-update and log-bin cannot be changed by the user after starting the server (they are not variables), the user will not later interfere with the settings we do here. */ if (opt_bin_log) { opt_sql_bin_update= 0; sql_print_error("The update log is no longer supported by MySQL in \ version 5.0 and above. It is replaced by the binary log."); } else { opt_sql_bin_update= 1; opt_bin_log= 1; if (opt_update_logname) { /* as opt_bin_log==0, no need to free opt_bin_logname */ if (!(opt_bin_logname= my_once_strdup(opt_update_logname, MYF(MY_WME)))) { sql_print_error("Out of memory"); return EXIT_OUT_OF_MEMORY; } sql_print_error("The update log is no longer supported by MySQL in \ version 5.0 and above. It is replaced by the binary log. Now starting MySQL \ with --log-bin='%s' instead.",opt_bin_logname); } else sql_print_error("The update log is no longer supported by MySQL in \ version 5.0 and above. It is replaced by the binary log. Now starting MySQL \ with --log-bin instead."); } } if (opt_log_slave_updates && !opt_bin_log) { sql_print_error("You need to use --log-bin to make " "--log-slave-updates work."); unireg_abort(1); } if (!opt_bin_log) { if (opt_binlog_format_id != BINLOG_FORMAT_UNSPEC) { sql_print_error("You need to use --log-bin to make " "--binlog-format work."); unireg_abort(1); } else { global_system_variables.binlog_format= BINLOG_FORMAT_STMT; } } else if (opt_binlog_format_id == BINLOG_FORMAT_UNSPEC) global_system_variables.binlog_format= BINLOG_FORMAT_STMT; else { DBUG_ASSERT(global_system_variables.binlog_format != BINLOG_FORMAT_UNSPEC); } /* 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) { 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); } #endif if (opt_bin_log) { /* Reports an error and aborts, if the --log-bin's path is a directory.*/ if (opt_bin_logname && 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 && !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 " "--log-bin-index was not used; so replication " "may break when this MySQL server acts as a " "master and has his hostname changed!! Please " "use '--log-bin=%s' to avoid this problem.", ln); } if (ln == buf) { opt_bin_logname= my_once_strdup(buf, MYF(MY_WME)); } if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln, TRUE)) { unireg_abort(1); } } /* call ha_init_key_cache() on all key caches to init them */ process_key_caches(&ha_init_key_cache); init_global_table_stats(); init_global_index_stats(); /* Allow storage engine to give real error messages */ if (ha_init_errors()) DBUG_RETURN(1); { if (plugin_init(&defaults_argc, defaults_argv, (opt_noacl ? PLUGIN_INIT_SKIP_PLUGIN_TABLE : 0) | (opt_help ? 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 */ } /* we do want to exit if there are any other unknown options */ if (defaults_argc > 1) { int ho_error; char **tmp_argv= defaults_argv; struct my_option no_opts[]= { {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. But we need to preserve defaults_argv pointer intact for free_defaults() to work. Thus we use a copy here. */ my_getopt_skip_unknown= 0; if ((ho_error= handle_options(&defaults_argc, &tmp_argv, no_opts, mysqld_get_one_option))) unireg_abort(ho_error); my_getopt_skip_unknown= TRUE; if (defaults_argc) { fprintf(stderr, "%s: Too many arguments (first extra is '%s').\n", my_progname, *tmp_argv); unireg_abort(1); } } if (opt_help) unireg_abort(0); /* if the errmsg.sys is not loaded, terminate to maintain behaviour */ if (!errmesg[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 warining 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_FILE, LOG_NONE, LOG_NONE); } else { /* fall back to the log files if tables are not present */ LEX_STRING csv_name={C_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"); log_output_options= (log_output_options & ~LOG_TABLE) | LOG_FILE; /* purecov: end */ } logger.set_handlers(LOG_FILE, opt_slow_log ? log_output_options:LOG_NONE, opt_log ? log_output_options:LOG_NONE); } /* Check that the default storage engine is actually available. */ if (default_storage_engine_str) { LEX_STRING name= { default_storage_engine_str, strlen(default_storage_engine_str) }; plugin_ref plugin; handlerton *hton; if ((plugin= ha_resolve_by_name(0, &name))) hton= plugin_data(plugin, handlerton*); else { sql_print_error("Unknown/unsupported table type: %s", default_storage_engine_str); unireg_abort(1); } if (!ha_storage_engine_is_enabled(hton)) { if (!opt_bootstrap) { sql_print_error("Default storage engine (%s) is not available", default_storage_engine_str); unireg_abort(1); } DBUG_ASSERT(global_system_variables.table_plugin); } else { /* Need to unlock as global_system_variables.table_plugin was acquired during plugin_init() */ pthread_mutex_lock(&LOCK_global_system_variables); plugin_unlock(0, global_system_variables.table_plugin); global_system_variables.table_plugin= plugin; pthread_mutex_unlock(&LOCK_global_system_variables); } } #if defined(WITH_ARIA_STORAGE_ENGINE) && defined(USE_MARIA_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 mysqld was configured with --with-aria-tmp-tables"); unireg_abort(1); } #endif tc_log= (total_ha_2pc > 1 ? (opt_bin_log ? (TC_LOG *) &mysql_bin_log : (TC_LOG *) &tc_log_mmap) : (TC_LOG *) &tc_log_dummy); 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); } if (opt_bin_log && mysql_bin_log.open(opt_bin_logname, LOG_BIN, 0, WRITE_CACHE, 0, max_binlog_size, 0, TRUE)) unireg_abort(1); #ifdef HAVE_REPLICATION if (opt_bin_log && expire_logs_days) { time_t purge_time= server_start_time - expire_logs_days*24*60*60; if (purge_time >= 0) mysql_bin_log.purge_logs_before_date(purge_time); } #endif #ifdef __NETWARE__ /* Increasing stacksize of threads on NetWare */ pthread_attr_setstacksize(&connection_attrib, NW_THD_STACKSIZE); #endif if (opt_myisam_log) (void) mi_log(1); #if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && !defined(EMBEDDED_LIBRARY) if (locked_in_memory && !getuid()) { if (setreuid((uid_t)-1, 0) == -1) { // this should never happen sql_perror("setreuid"); unireg_abort(1); } if (mlockall(MCL_CURRENT)) { if (global_system_variables.log_warnings) sql_print_warning("Failed to lock memory. Errno: %d\n",errno); locked_in_memory= 0; } if (user_info) set_user(mysqld_user, user_info); } else #endif locked_in_memory=0; ft_init_stopwords(); init_max_user_conn(); init_update_queries(); init_global_user_stats(); init_global_client_stats(); DBUG_RETURN(0); } #ifndef EMBEDDED_LIBRARY static void create_shutdown_thread() { #ifdef __WIN__ hEventShutdown=CreateEvent(0, FALSE, FALSE, shutdown_event_name); pthread_t hThread; if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0)) sql_print_warning("Can't create thread to handle shutdown requests"); // On "Stop Service" we have to do regular shutdown Service.SetShutdownEvent(hEventShutdown); #endif /* __WIN__ */ } #endif /* EMBEDDED_LIBRARY */ #if (defined(__NT__) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY) static void handle_connections_methods() { pthread_t hThread; DBUG_ENTER("handle_connections_methods"); #ifdef __NT__ if (hPipe == INVALID_HANDLE_VALUE && (!have_tcpip || opt_disable_networking) && !opt_enable_shared_memory) { sql_print_error("TCP/IP, --shared-memory, or --named-pipe should be configured on NT OS"); unireg_abort(1); // Will not return } #endif pthread_mutex_lock(&LOCK_thread_count); (void) pthread_cond_init(&COND_handler_count,NULL); handler_count=0; #ifdef __NT__ if (hPipe != INVALID_HANDLE_VALUE) { handler_count++; if (pthread_create(&hThread,&connection_attrib, handle_connections_namedpipes, 0)) { sql_print_warning("Can't create thread to handle named pipes"); handler_count--; } } #endif /* __NT__ */ if (have_tcpip && !opt_disable_networking) { handler_count++; if (pthread_create(&hThread,&connection_attrib, handle_connections_sockets, 0)) { sql_print_warning("Can't create thread to handle TCP/IP"); handler_count--; } } #ifdef HAVE_SMEM if (opt_enable_shared_memory) { handler_count++; if (pthread_create(&hThread,&connection_attrib, handle_connections_shared_memory, 0)) { sql_print_warning("Can't create thread to handle shared memory"); handler_count--; } } #endif while (handler_count > 0) pthread_cond_wait(&COND_handler_count,&LOCK_thread_count); pthread_mutex_unlock(&LOCK_thread_count); DBUG_VOID_RETURN; } void decrement_handler_count() { pthread_mutex_lock(&LOCK_thread_count); handler_count--; pthread_cond_signal(&COND_handler_count); pthread_mutex_unlock(&LOCK_thread_count); my_thread_end(); } #else #define decrement_handler_count() #endif /* defined(__NT__) || defined(HAVE_SMEM) */ #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++) { uint max_month_len= 0; uint 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_utf8_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_utf8_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 #ifdef __WIN__ int win_main(int argc, char **argv) #else int main(int argc, char **argv) #endif { MY_INIT(argv[0]); // init my_sys library & pthreads /* nothing should come before this line ^^^ */ /* Perform basic logger initialization logger. Should be called after MY_INIT, as it initializes mutexes. Log tables are inited later. */ logger.init_base(); #ifdef _CUSTOMSTARTUPCONFIG_ if (_cust_check_startup()) { / * _cust_check_startup will report startup failure error * / exit(1); } #endif #ifdef __WIN__ /* Before performing any socket operation (like retrieving hostname in init_common_variables we have to call WSAStartup */ { WSADATA WsaData; if (SOCKET_ERROR == WSAStartup (0x0101, &WsaData)) { /* errors are not read yet, so we use english text here */ my_message(ER_WSAS_FAILED, "WSAStartup Failed", MYF(0)); unireg_abort(1); } } #endif /* __WIN__ */ if (init_common_variables(MYSQL_CONFIG_NAME, argc, argv, load_default_groups)) unireg_abort(1); // Will do exit init_signals(); if (!(opt_specialflag & SPECIAL_NO_PRIOR)) my_pthread_setprio(pthread_self(),CONNECT_PRIOR); #if defined(__ia64__) || defined(__ia64) /* Peculiar things with ia64 platforms - it seems we only have half the stack size in reality, so we have to double it here */ pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size*2); #else pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size); #endif #ifdef HAVE_PTHREAD_ATTR_GETSTACKSIZE { /* Retrieve used stack size; Needed for checking stack overflows */ size_t stack_size= 0; pthread_attr_getstacksize(&connection_attrib, &stack_size); #if defined(__ia64__) || defined(__ia64) stack_size/= 2; #endif /* We must check if stack_size = 0 as Solaris 2.9 can return 0 here */ if (stack_size && stack_size < my_thread_stack_size) { if (global_system_variables.log_warnings) sql_print_warning("Asked for %lu thread stack, but got %ld", my_thread_stack_size, (long) stack_size); #if defined(__ia64__) || defined(__ia64) my_thread_stack_size= stack_size*2; #else my_thread_stack_size= stack_size; #endif } } #endif #ifdef __NETWARE__ /* Increasing stacksize of threads on NetWare */ pthread_attr_setstacksize(&connection_attrib, NW_THD_STACKSIZE); #endif (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(); #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,MYF(MY_WME)) && !opt_help) unireg_abort(1); /* purecov: inspected */ mysql_data_home= mysql_data_home_buff; mysql_data_home[0]=FN_CURLIB; // all paths are relative from here mysql_data_home[1]=0; mysql_data_home_len= 2; 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); } if (opt_bin_log && !server_id) { server_id= !master_host ? 1 : 2; #ifdef EXTRA_DEBUG switch (server_id) { case 1: sql_print_warning("\ You have enabled the binary log, but you haven't set server-id to \ a non-zero value: we force server id to 1; updates will be logged to the \ binary log, but connections from slaves will not be accepted."); break; case 2: sql_print_warning("\ You should set server-id to a non-0 value if master_host is set; \ we force server id to 2, but this MySQL server will not act as a slave."); break; } #endif } if (init_server_components()) unireg_abort(1); init_ssl(); network_init(); #ifdef __WIN__ if (!opt_console) { if (reopen_fstreams(log_error_file, stdout, stderr)) unireg_abort(1); setbuf(stderr, NULL); FreeConsole(); // Remove window } #endif /* Initialize my_str_malloc() and my_str_free() */ my_str_malloc= &my_str_malloc_mysqld; my_str_free= &my_str_free_mysqld; /* 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)) { abort_loop=1; select_thread_in_use=0; #ifndef __NETWARE__ (void) pthread_kill(signal_thread, MYSQL_KILL_SIGNAL); #endif /* __NETWARE__ */ if (!opt_bootstrap) (void) my_delete(pidfile_name,MYF(MY_WME)); // Not needed anymore if (unix_sock != INVALID_SOCKET) unlink(mysqld_unix_port); exit(1); } if (!opt_noacl) (void) grant_init(); if (!opt_bootstrap) servers_init(0); if (!opt_noacl) { #ifdef HAVE_DLOPEN udf_init(); #endif } init_status_vars(); if (opt_bootstrap) /* If running with bootstrap, do not start replication. */ opt_skip_slave_start= 1; /* 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); } execute_ddl_log_recovery(); if (Events::init(opt_noacl || opt_bootstrap)) unireg_abort(1); if (opt_bootstrap) { select_thread_in_use= 0; // Allow 'kill' to work bootstrap(stdin); if (!kill_in_progress) unireg_abort(bootstrap_error ? 1 : 0); else { sleep(2); // Wait for kill exit(0); } } if (opt_init_file) { if (read_init_file(opt_init_file)) unireg_abort(1); } create_shutdown_thread(); start_handle_manager(); sql_print_information(ER(ER_STARTUP),my_progname,server_version, ((unix_sock == INVALID_SOCKET) ? (char*) "" : mysqld_unix_port), mysqld_port, MYSQL_COMPILATION_COMMENT); #if defined(_WIN32) && !defined(EMBEDDED_LIBRARY) Service.SetRunning(); #endif /* Signal threads waiting for server to be started */ pthread_mutex_lock(&LOCK_server_started); mysqld_server_started= 1; pthread_cond_signal(&COND_server_started); pthread_mutex_unlock(&LOCK_server_started); #if defined(__NT__) || defined(HAVE_SMEM) handle_connections_methods(); #else #ifdef __WIN__ if (!have_tcpip || opt_disable_networking) { sql_print_error("TCP/IP unavailable or disabled with --skip-networking; no available interfaces"); unireg_abort(1); } #endif handle_connections_sockets(0); #endif /* __NT__ */ /* (void) pthread_attr_destroy(&connection_attrib); */ DBUG_PRINT("quit",("Exiting main thread")); #ifndef __WIN__ #ifdef EXTRA_DEBUG2 sql_print_error("Before Lock_thread_count"); #endif (void) pthread_mutex_lock(&LOCK_thread_count); DBUG_PRINT("quit", ("Got thread_count mutex")); select_thread_in_use=0; // For close_connections (void) pthread_mutex_unlock(&LOCK_thread_count); (void) pthread_cond_broadcast(&COND_thread_count); #ifdef EXTRA_DEBUG2 sql_print_error("After lock_thread_count"); #endif #endif /* __WIN__ */ /* Wait until cleanup is done */ (void) pthread_mutex_lock(&LOCK_thread_count); while (!ready_to_exit) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count); (void) pthread_mutex_unlock(&LOCK_thread_count); #if defined(__WIN__) && !defined(EMBEDDED_LIBRARY) if (Service.IsNT() && start_mode) Service.Stop(); else { Service.SetShutdownEvent(0); if (hEventShutdown) CloseHandle(hEventShutdown); } #endif clean_up(1); wait_for_signal_thread_to_end(); clean_up_mutexes(); my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0); exit(0); return(0); /* purecov: deadcode */ } #endif /* EMBEDDED_LIBRARY */ /**************************************************************************** Main and thread entry function for Win32 (all this is needed only to run mysqld as a service on WinNT) ****************************************************************************/ #if defined(__WIN__) && !defined(EMBEDDED_LIBRARY) int mysql_service(void *p) { if (use_opt_args) win_main(opt_argc, opt_argv); else win_main(Service.my_argc, Service.my_argv); return 0; } /* Quote string if it contains space, else copy */ static char *add_quoted_string(char *to, const char *from, char *to_end) { uint length= (uint) (to_end-to); if (!strchr(from, ' ')) return strmake(to, from, length-1); return strxnmov(to, length-1, "\"", from, "\"", NullS); } /** Handle basic handling of services, like installation and removal. @param argv Pointer to argument list @param servicename Internal name of service @param displayname Display name of service (in taskbar ?) @param file_path Path to this program @param startup_option Startup option to mysqld @retval 0 option handled @retval 1 Could not handle option */ static bool default_service_handling(char **argv, const char *servicename, const char *displayname, const char *file_path, const char *extra_opt, const char *account_name) { char path_and_service[FN_REFLEN+FN_REFLEN+32], *pos, *end; const char *opt_delim; end= path_and_service + sizeof(path_and_service)-3; /* We have to quote filename if it contains spaces */ pos= add_quoted_string(path_and_service, file_path, end); if (*extra_opt) { /* Add option after file_path. There will be zero or one extra option. It's assumed to be --defaults-file=file but isn't checked. The variable (not the option name) should be quoted if it contains a string. */ *pos++= ' '; if (opt_delim= strchr(extra_opt, '=')) { size_t length= ++opt_delim - extra_opt; pos= strnmov(pos, extra_opt, length); } else opt_delim= extra_opt; pos= add_quoted_string(pos, opt_delim, end); } /* We must have servicename last */ *pos++= ' '; (void) add_quoted_string(pos, servicename, end); if (Service.got_service_option(argv, "install")) { Service.Install(1, servicename, displayname, path_and_service, account_name); return 0; } if (Service.got_service_option(argv, "install-manual")) { Service.Install(0, servicename, displayname, path_and_service, account_name); return 0; } if (Service.got_service_option(argv, "remove")) { Service.Remove(servicename); return 0; } return 1; } int main(int argc, char **argv) { /* When several instances are running on the same machine, we need to have an unique named hEventShudown through the application PID e.g.: MySQLShutdown1890; MySQLShutdown2342 */ int10_to_str((int) GetCurrentProcessId(),strmov(shutdown_event_name, "MySQLShutdown"), 10); /* Must be initialized early for comparison of service name */ system_charset_info= &my_charset_utf8_general_ci; if (Service.GetOS()) /* true NT family */ { char file_path[FN_REFLEN]; my_path(file_path, argv[0], ""); /* Find name in path */ fn_format(file_path,argv[0],file_path,"", MY_REPLACE_DIR | MY_UNPACK_FILENAME | MY_RESOLVE_SYMLINKS); if (argc == 2) { if (!default_service_handling(argv, MYSQL_SERVICENAME, MYSQL_SERVICENAME, file_path, "", NULL)) return 0; if (Service.IsService(argv[1])) /* Start an optional service */ { /* Only add the service name to the groups read from the config file if it's not "MySQL". (The default service name should be 'mysqld' but we started a bad tradition by calling it MySQL from the start and we are now stuck with it. */ if (my_strcasecmp(system_charset_info, argv[1],"mysql")) load_default_groups[load_default_groups_sz-2]= argv[1]; start_mode= 1; Service.Init(argv[1], mysql_service); return 0; } } else if (argc == 3) /* install or remove any optional service */ { if (!default_service_handling(argv, argv[2], argv[2], file_path, "", NULL)) return 0; if (Service.IsService(argv[2])) { /* mysqld was started as mysqld --defaults-file=my_path\my.ini service-name */ use_opt_args=1; opt_argc= 2; // Skip service-name opt_argv=argv; start_mode= 1; if (my_strcasecmp(system_charset_info, argv[2],"mysql")) load_default_groups[load_default_groups_sz-2]= argv[2]; Service.Init(argv[2], mysql_service); return 0; } } else if (argc == 4 || argc == 5) { /* This may seem strange, because we handle --local-service while preserving 4.1's behavior of allowing any one other argument that is passed to the service on startup. (The assumption is that this is --defaults-file=file, but that was not enforced in 4.1, so we don't enforce it here.) */ const char *extra_opt= NullS; const char *account_name = NullS; int index; for (index = 3; index < argc; index++) { if (!strcmp(argv[index], "--local-service")) account_name= "NT AUTHORITY\\LocalService"; else extra_opt= argv[index]; } if (argc == 4 || account_name) if (!default_service_handling(argv, argv[2], argv[2], file_path, extra_opt, account_name)) return 0; } else if (argc == 1 && Service.IsService(MYSQL_SERVICENAME)) { /* start the default service */ start_mode= 1; Service.Init(MYSQL_SERVICENAME, mysql_service); return 0; } } /* Start as standalone server */ Service.my_argc=argc; Service.my_argv=argv; mysql_service(NULL); return 0; } #endif /** Execute all commands from a file. Used by the mysql_install_db script to create MySQL privilege tables without having to start a full MySQL server. */ static void bootstrap(FILE *file) { DBUG_ENTER("bootstrap"); THD *thd= new THD; thd->bootstrap=1; my_net_init(&thd->net,(st_vio*) 0); thd->max_client_packet_length= thd->net.max_packet; thd->security_ctx->master_access= ~(ulong)0; thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; thread_count++; in_bootstrap= TRUE; bootstrap_file=file; #ifndef EMBEDDED_LIBRARY // TODO: Enable this if (pthread_create(&thd->real_id,&connection_attrib,handle_bootstrap, (void*) thd)) { sql_print_warning("Can't create thread to handle bootstrap"); bootstrap_error=-1; DBUG_VOID_RETURN; } /* Wait for thread to die */ (void) pthread_mutex_lock(&LOCK_thread_count); while (in_bootstrap) { (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count); DBUG_PRINT("quit",("One thread died (count=%u)",thread_count)); } (void) pthread_mutex_unlock(&LOCK_thread_count); #else thd->mysql= 0; handle_bootstrap((void *)thd); #endif DBUG_VOID_RETURN; } static bool read_init_file(char *file_name) { FILE *file; DBUG_ENTER("read_init_file"); DBUG_PRINT("enter",("name: %s",file_name)); if (!(file=my_fopen(file_name,O_RDONLY,MYF(MY_WME)))) DBUG_RETURN(TRUE); bootstrap(file); (void) my_fclose(file,MYF(MY_WME)); DBUG_RETURN(FALSE); } #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 When we enter this function, LOCK_thread_count is hold! */ void handle_connection_in_main_thread(THD *thd) { safe_mutex_assert_owner(&LOCK_thread_count); thread_cache_size=0; // Safety threads.append(thd); thd->start_utime= my_micro_time(); pthread_mutex_unlock(&LOCK_thread_count); thd->start_utime= my_micro_time(); handle_one_connection(thd); } /* Scheduler that uses one thread per connection */ void create_thread_to_handle_connection(THD *thd) { if (cached_thread_count > wake_thread) { /* Get thread from cache */ thread_cache.append(thd); wake_thread++; pthread_cond_signal(&COND_thread_cache); } else { char error_message_buff[MYSQL_ERRMSG_SIZE]; /* Create new thread to handle connection */ int error; thread_created++; threads.append(thd); DBUG_PRINT("info",(("creating thread %lu"), thd->thread_id)); thd->prior_thr_create_utime= thd->start_utime= my_micro_time(); if ((error=pthread_create(&thd->real_id,&connection_attrib, handle_one_connection, (void*) thd))) { /* purecov: begin inspected */ DBUG_PRINT("error", ("Can't create thread to handle request (error %d)", error)); thread_count--; thd->killed= THD::KILL_CONNECTION; // Safety (void) pthread_mutex_unlock(&LOCK_thread_count); pthread_mutex_lock(&LOCK_connection_count); (*thd->scheduler->connection_count)--; pthread_mutex_unlock(&LOCK_connection_count); statistic_increment(aborted_connects,&LOCK_status); /* Can't use my_error() since store_globals has not been called. */ my_snprintf(error_message_buff, sizeof(error_message_buff), ER(ER_CANT_CREATE_THREAD), error); net_send_error(thd, ER_CANT_CREATE_THREAD, error_message_buff); (void) pthread_mutex_lock(&LOCK_thread_count); close_connection(thd,ER_OUT_OF_RESOURCES,0); delete thd; (void) pthread_mutex_unlock(&LOCK_thread_count); return; /* purecov: end */ } } (void) pthread_mutex_unlock(&LOCK_thread_count); DBUG_PRINT("info",("Thread created")); } /** 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. */ static void create_new_thread(THD *thd) { NET *net=&thd->net; DBUG_ENTER("create_new_thread"); if (protocol_version > 9) net->return_errno=1; /* Don't allow too many connections. We roughly check here that we allow only (max_connections + 1) connections. */ pthread_mutex_lock(&LOCK_connection_count); if (*thd->scheduler->connection_count >= *thd->scheduler->max_connections + 1|| abort_loop) { pthread_mutex_unlock(&LOCK_connection_count); DBUG_PRINT("error",("Too many connections")); close_connection(thd, ER_CON_COUNT_ERROR, 1); statistic_increment(denied_connections, &LOCK_status); delete thd; DBUG_VOID_RETURN; } ++*thd->scheduler->connection_count; if (connection_count + extra_connection_count > max_used_connections) max_used_connections= connection_count + extra_connection_count; pthread_mutex_unlock(&LOCK_connection_count); /* Start a new thread to handle connection. */ pthread_mutex_lock(&LOCK_thread_count); /* The initialization of thread_id is done in create_embedded_thd() for the embedded library. TODO: refactor this to avoid code duplication there */ thd->thread_id= thd->variables.pseudo_thread_id= thread_id++; thread_count++; thd->scheduler->add_connection(thd); DBUG_VOID_RETURN; } #endif /* EMBEDDED_LIBRARY */ #ifdef SIGNALS_DONT_BREAK_READ inline void kill_broken_server() { /* hack to get around signals ignored in syscalls for problem OS's */ if ( #if !defined(__NETWARE__) unix_sock == INVALID_SOCKET || #endif (!opt_disable_networking && base_ip_sock == INVALID_SOCKET)) { select_thread_in_use = 0; /* The following call will never return */ DBUG_PRINT("general", ("killing server because socket is closed")); kill_server(IF_NETWARE(MYSQL_KILL_SIGNAL, (void*) MYSQL_KILL_SIGNAL)); } } #define MAYBE_BROKEN_SYSCALL kill_broken_server(); #else #define MAYBE_BROKEN_SYSCALL #endif /* Handle new connections and spawn new process to handle them */ #ifndef EMBEDDED_LIBRARY pthread_handler_t handle_connections_sockets(void *arg __attribute__((unused))) { my_socket sock,new_sock; uint error_count=0; uint max_used_connection; fd_set readFDs,clientFDs; THD *thd; struct sockaddr_in cAddr; int base_ip_flags=0, extra_ip_flags= 0, socket_flags=0, flags; st_vio *vio_tmp; DBUG_ENTER("handle_connections_sockets"); max_used_connection= (uint) (max(base_ip_sock, unix_sock)); max_used_connection= (uint) (max(extra_ip_sock, (int) max_used_connection)); max_used_connection++; LINT_INIT(new_sock); (void) my_pthread_getprio(pthread_self()); // For debugging FD_ZERO(&clientFDs); if (base_ip_sock != INVALID_SOCKET) { FD_SET(base_ip_sock, &clientFDs); #ifdef HAVE_FCNTL base_ip_flags = fcntl(base_ip_sock, F_GETFL, 0); #endif } if (extra_ip_sock != INVALID_SOCKET) { FD_SET(extra_ip_sock, &clientFDs); #ifdef HAVE_FCNTL extra_ip_flags = fcntl(extra_ip_sock, F_GETFL, 0); #endif } #ifdef HAVE_SYS_UN_H FD_SET(unix_sock,&clientFDs); #ifdef HAVE_FCNTL socket_flags=fcntl(unix_sock, F_GETFL, 0); #endif #endif DBUG_PRINT("general",("Waiting for connections.")); MAYBE_BROKEN_SYSCALL; while (!abort_loop) { readFDs=clientFDs; #ifdef HPUX10 if (select(max_used_connection,(int*) &readFDs,0,0,0) < 0) continue; #else if (select((int) max_used_connection,&readFDs,0,0,0) < 0) { if (socket_errno != SOCKET_EINTR) { if (!select_errors++ && !abort_loop) /* purecov: inspected */ sql_print_error("mysqld: Got error %d from select",socket_errno); /* purecov: inspected */ } MAYBE_BROKEN_SYSCALL continue; } #endif /* HPUX10 */ if (abort_loop) { MAYBE_BROKEN_SYSCALL; break; } /* Is this a new connection request ? */ #ifdef HAVE_SYS_UN_H if (FD_ISSET(unix_sock,&readFDs)) { sock= unix_sock; flags= socket_flags; } else #endif { if (FD_ISSET(base_ip_sock,&readFDs)) { sock= base_ip_sock; flags= base_ip_flags; } else { sock= extra_ip_sock; flags= extra_ip_flags; } } #if !defined(NO_FCNTL_NONBLOCK) if (!(test_flags & TEST_BLOCKING)) { #if defined(O_NONBLOCK) fcntl(sock, F_SETFL, flags | O_NONBLOCK); #elif defined(O_NDELAY) fcntl(sock, F_SETFL, flags | O_NDELAY); #endif } #endif /* NO_FCNTL_NONBLOCK */ for (uint retry=0; retry < MAX_ACCEPT_RETRY; retry++) { size_socket length=sizeof(struct sockaddr_in); new_sock = accept(sock, my_reinterpret_cast(struct sockaddr *) (&cAddr), &length); #ifdef __NETWARE__ // TODO: temporary fix, waiting for TCP/IP fix - DEFECT000303149 if ((new_sock == INVALID_SOCKET) && (socket_errno == EINVAL)) { kill_server(SIGTERM); } #endif if (new_sock != INVALID_SOCKET || (socket_errno != SOCKET_EINTR && socket_errno != SOCKET_EAGAIN)) break; MAYBE_BROKEN_SYSCALL; #if !defined(NO_FCNTL_NONBLOCK) if (!(test_flags & TEST_BLOCKING)) { if (retry == MAX_ACCEPT_RETRY - 1) fcntl(sock, F_SETFL, flags); // Try without O_NONBLOCK } #endif } #if !defined(NO_FCNTL_NONBLOCK) if (!(test_flags & TEST_BLOCKING)) fcntl(sock, F_SETFL, flags); #endif if (new_sock == INVALID_SOCKET) { if ((error_count++ & 255) == 0) // This can happen often sql_perror("Error in accept"); MAYBE_BROKEN_SYSCALL; if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE) sleep(1); // Give other threads some time continue; } #ifdef HAVE_LIBWRAP { if (sock == base_ip_sock || sock == extra_ip_sock) { struct request_info req; signal(SIGCHLD, SIG_DFL); request_init(&req, RQ_DAEMON, libwrapName, RQ_FILE, 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) shutdown(new_sock, SHUT_RDWR); (void) closesocket(new_sock); continue; } } } #endif /* HAVE_LIBWRAP */ { size_socket dummyLen; struct sockaddr dummy; dummyLen = sizeof(struct sockaddr); if (getsockname(new_sock,&dummy, &dummyLen) < 0) { sql_perror("Error on new connection socket"); (void) shutdown(new_sock, SHUT_RDWR); (void) closesocket(new_sock); continue; } } /* ** Don't allow too many connections */ if (!(thd= new THD)) { (void) shutdown(new_sock, SHUT_RDWR); VOID(closesocket(new_sock)); continue; } if (!(vio_tmp=vio_new(new_sock, sock == unix_sock ? VIO_TYPE_SOCKET : VIO_TYPE_TCPIP, sock == unix_sock ? VIO_LOCALHOST: 0)) || my_net_init(&thd->net,vio_tmp)) { /* Only delete the temporary vio if we didn't already attach it to the NET object. The destructor in THD will delete any initialized net structure. */ if (vio_tmp && thd->net.vio != vio_tmp) vio_delete(vio_tmp); else { (void) shutdown(new_sock, SHUT_RDWR); (void) closesocket(new_sock); } delete thd; continue; } if (sock == unix_sock) thd->security_ctx->host=(char*) my_localhost; if (sock == extra_ip_sock) { thd->extra_port= 1; thd->scheduler= &extra_thread_scheduler; } create_new_thread(thd); } DBUG_LEAVE; decrement_handler_count(); return 0; } #ifdef __NT__ pthread_handler_t handle_connections_namedpipes(void *arg) { HANDLE hConnectedPipe; OVERLAPPED connectOverlapped= {0}; THD *thd; my_thread_init(); DBUG_ENTER("handle_connections_namedpipes"); connectOverlapped.hEvent= CreateEvent(NULL, TRUE, FALSE, NULL); if (!connectOverlapped.hEvent) { sql_print_error("Can't create event, last error=%u", GetLastError()); unireg_abort(1); } DBUG_PRINT("general",("Waiting for named pipe connections.")); while (!abort_loop) { /* wait for named pipe connection */ BOOL fConnected= ConnectNamedPipe(hPipe, &connectOverlapped); if (!fConnected && (GetLastError() == ERROR_IO_PENDING)) { /* ERROR_IO_PENDING says async IO has started but not yet finished. GetOverlappedResult will wait for completion. */ DWORD bytes; fConnected= GetOverlappedResult(hPipe, &connectOverlapped,&bytes, TRUE); } if (abort_loop) break; if (!fConnected) fConnected = GetLastError() == ERROR_PIPE_CONNECTED; if (!fConnected) { CloseHandle(hPipe); if ((hPipe= CreateNamedPipe(pipe_name, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES, (int) global_system_variables. net_buffer_length, (int) global_system_variables. net_buffer_length, NMPWAIT_USE_DEFAULT_WAIT, &saPipeSecurity)) == INVALID_HANDLE_VALUE) { sql_perror("Can't create new named pipe!"); break; // Abort } } hConnectedPipe = hPipe; /* create new pipe for new connection */ if ((hPipe = CreateNamedPipe(pipe_name, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES, (int) global_system_variables.net_buffer_length, (int) global_system_variables.net_buffer_length, NMPWAIT_USE_DEFAULT_WAIT, &saPipeSecurity)) == INVALID_HANDLE_VALUE) { sql_perror("Can't create new named pipe!"); hPipe=hConnectedPipe; continue; // We have to try again } if (!(thd = new THD)) { DisconnectNamedPipe(hConnectedPipe); CloseHandle(hConnectedPipe); continue; } if (!(thd->net.vio= vio_new_win32pipe(hConnectedPipe)) || my_net_init(&thd->net, thd->net.vio)) { close_connection(thd, ER_OUT_OF_RESOURCES, 1); delete thd; continue; } /* Host is unknown */ thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); create_new_thread(thd); } CloseHandle(connectOverlapped.hEvent); DBUG_LEAVE; decrement_handler_count(); return 0; } #endif /* __NT__ */ #ifdef HAVE_SMEM /** Thread of shared memory's service. @param arg Arguments of thread */ pthread_handler_t handle_connections_shared_memory(void *arg) { /* file-mapping object, use for create shared memory */ HANDLE handle_connect_file_map= 0; char *handle_connect_map= 0; // pointer on shared memory HANDLE event_connect_answer= 0; ulong smem_buffer_length= shared_memory_buffer_length + 4; ulong connect_number= 1; char *tmp= NULL; char *suffix_pos; char connect_number_char[22], *p; const char *errmsg= 0; SECURITY_ATTRIBUTES *sa_event= 0, *sa_mapping= 0; my_thread_init(); DBUG_ENTER("handle_connections_shared_memorys"); DBUG_PRINT("general",("Waiting for allocated shared memory.")); /* get enough space base-name + '_' + longest suffix we might ever send */ if (!(tmp= (char *)my_malloc(strlen(shared_memory_base_name) + 32L, MYF(MY_FAE)))) goto error; if (my_security_attr_create(&sa_event, &errmsg, GENERIC_ALL, SYNCHRONIZE | EVENT_MODIFY_STATE)) goto error; if (my_security_attr_create(&sa_mapping, &errmsg, GENERIC_ALL, FILE_MAP_READ | FILE_MAP_WRITE)) goto error; /* The name of event and file-mapping events create agree next rule: shared_memory_base_name+unique_part Where: shared_memory_base_name is unique value for each server unique_part is unique value for each object (events and file-mapping) */ suffix_pos= strxmov(tmp,shared_memory_base_name,"_",NullS); strmov(suffix_pos, "CONNECT_REQUEST"); if ((smem_event_connect_request= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0) { errmsg= "Could not create request event"; goto error; } strmov(suffix_pos, "CONNECT_ANSWER"); if ((event_connect_answer= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0) { errmsg="Could not create answer event"; goto error; } strmov(suffix_pos, "CONNECT_DATA"); if ((handle_connect_file_map= CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping, PAGE_READWRITE, 0, sizeof(connect_number), tmp)) == 0) { errmsg= "Could not create file mapping"; goto error; } if ((handle_connect_map= (char *)MapViewOfFile(handle_connect_file_map, FILE_MAP_WRITE,0,0, sizeof(DWORD))) == 0) { errmsg= "Could not create shared memory service"; goto error; } while (!abort_loop) { /* Wait a request from client */ WaitForSingleObject(smem_event_connect_request,INFINITE); /* it can be after shutdown command */ if (abort_loop) goto error; HANDLE handle_client_file_map= 0; char *handle_client_map= 0; HANDLE event_client_wrote= 0; HANDLE event_client_read= 0; // for transfer data server <-> client HANDLE event_server_wrote= 0; HANDLE event_server_read= 0; HANDLE event_conn_closed= 0; THD *thd= 0; p= int10_to_str(connect_number, connect_number_char, 10); /* The name of event and file-mapping events create agree next rule: shared_memory_base_name+unique_part+number_of_connection Where: shared_memory_base_name is uniquel value for each server unique_part is unique value for each object (events and file-mapping) number_of_connection is connection-number between server and client */ suffix_pos= strxmov(tmp,shared_memory_base_name,"_",connect_number_char, "_",NullS); strmov(suffix_pos, "DATA"); if ((handle_client_file_map= CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping, PAGE_READWRITE, 0, smem_buffer_length, tmp)) == 0) { errmsg= "Could not create file mapping"; goto errorconn; } if ((handle_client_map= (char*)MapViewOfFile(handle_client_file_map, FILE_MAP_WRITE,0,0, smem_buffer_length)) == 0) { errmsg= "Could not create memory map"; goto errorconn; } strmov(suffix_pos, "CLIENT_WROTE"); if ((event_client_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0) { errmsg= "Could not create client write event"; goto errorconn; } strmov(suffix_pos, "CLIENT_READ"); if ((event_client_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0) { errmsg= "Could not create client read event"; goto errorconn; } strmov(suffix_pos, "SERVER_READ"); if ((event_server_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0) { errmsg= "Could not create server read event"; goto errorconn; } strmov(suffix_pos, "SERVER_WROTE"); if ((event_server_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0) { errmsg= "Could not create server write event"; goto errorconn; } strmov(suffix_pos, "CONNECTION_CLOSED"); if ((event_conn_closed= CreateEvent(sa_event, TRUE, FALSE, tmp)) == 0) { errmsg= "Could not create closed connection event"; goto errorconn; } if (abort_loop) goto errorconn; if (!(thd= new THD)) goto errorconn; /* Send number of connection to client */ int4store(handle_connect_map, connect_number); if (!SetEvent(event_connect_answer)) { errmsg= "Could not send answer event"; goto errorconn; } /* Set event that client should receive data */ if (!SetEvent(event_client_read)) { errmsg= "Could not set client to read mode"; goto errorconn; } if (!(thd->net.vio= vio_new_win32shared_memory(handle_client_file_map, handle_client_map, event_client_wrote, event_client_read, event_server_wrote, event_server_read, event_conn_closed)) || my_net_init(&thd->net, thd->net.vio)) { close_connection(thd, ER_OUT_OF_RESOURCES, 1); errmsg= 0; goto errorconn; } thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); /* Host is unknown */ create_new_thread(thd); connect_number++; continue; errorconn: /* Could not form connection; Free used handlers/memort and retry */ if (errmsg) { char buff[180]; strxmov(buff, "Can't create shared memory connection: ", errmsg, ".", NullS); sql_perror(buff); } if (handle_client_file_map) CloseHandle(handle_client_file_map); if (handle_client_map) UnmapViewOfFile(handle_client_map); if (event_server_wrote) CloseHandle(event_server_wrote); if (event_server_read) CloseHandle(event_server_read); if (event_client_wrote) CloseHandle(event_client_wrote); if (event_client_read) CloseHandle(event_client_read); if (event_conn_closed) CloseHandle(event_conn_closed); delete thd; } /* End shared memory handling */ error: if (tmp) my_free(tmp, MYF(0)); if (errmsg) { char buff[180]; strxmov(buff, "Can't create shared memory service: ", errmsg, ".", NullS); sql_perror(buff); } my_security_attr_free(sa_event); my_security_attr_free(sa_mapping); if (handle_connect_map) UnmapViewOfFile(handle_connect_map); if (handle_connect_file_map) CloseHandle(handle_connect_file_map); if (event_connect_answer) CloseHandle(event_connect_answer); if (smem_event_connect_request) CloseHandle(smem_event_connect_request); DBUG_LEAVE; decrement_handler_count(); return 0; } #endif /* HAVE_SMEM */ #endif /* EMBEDDED_LIBRARY */ /**************************************************************************** Handle start options ******************************************************************************/ enum options_mysqld { OPT_ISAM_LOG=256, OPT_SKIP_GRANT, OPT_SKIP_LOCK, OPT_ENABLE_LOCK, OPT_USE_LOCKING, OPT_SOCKET, OPT_UPDATE_LOG, OPT_EXTRA_PORT, OPT_BIN_LOG, OPT_SKIP_RESOLVE, OPT_SKIP_NETWORKING, OPT_BIN_LOG_INDEX, OPT_BIND_ADDRESS, OPT_PID_FILE, OPT_SKIP_PRIOR, OPT_BIG_TABLES, OPT_STANDALONE, OPT_ONE_THREAD, OPT_CONSOLE, OPT_LOW_PRIORITY_UPDATES, OPT_SKIP_HOST_CACHE, OPT_SHORT_LOG_FORMAT, OPT_FLUSH, OPT_SAFE, OPT_BOOTSTRAP, OPT_SKIP_SHOW_DB, OPT_STORAGE_ENGINE, OPT_INIT_FILE, OPT_DELAY_KEY_WRITE_ALL, OPT_SLOW_QUERY_LOG, OPT_DELAY_KEY_WRITE, OPT_CHARSETS_DIR, OPT_MASTER_HOST, OPT_MASTER_USER, OPT_MASTER_PASSWORD, OPT_MASTER_PORT, OPT_MASTER_INFO_FILE, OPT_MASTER_CONNECT_RETRY, OPT_MASTER_RETRY_COUNT, OPT_LOG_TC, OPT_LOG_TC_SIZE, OPT_MASTER_SSL, OPT_MASTER_SSL_KEY, OPT_MASTER_SSL_CERT, OPT_MASTER_SSL_CAPATH, OPT_MASTER_SSL_CIPHER, OPT_MASTER_SSL_CA, OPT_SQL_BIN_UPDATE_SAME, OPT_REPLICATE_DO_DB, OPT_REPLICATE_IGNORE_DB, OPT_LOG_SLAVE_UPDATES, OPT_BINLOG_DO_DB, OPT_BINLOG_IGNORE_DB, OPT_BINLOG_FORMAT, #ifndef DBUG_OFF OPT_BINLOG_SHOW_XID, #endif OPT_BINLOG_ROWS_EVENT_MAX_SIZE, OPT_WANT_CORE, OPT_CONCURRENT_INSERT, OPT_MEMLOCK, OPT_MYISAM_RECOVER, OPT_REPLICATE_REWRITE_DB, OPT_SERVER_ID, OPT_SKIP_SLAVE_START, OPT_SAFE_SHOW_DB, OPT_SAFEMALLOC_MEM_LIMIT, OPT_REPLICATE_DO_TABLE, OPT_REPLICATE_IGNORE_TABLE, OPT_REPLICATE_WILD_DO_TABLE, OPT_REPLICATE_WILD_IGNORE_TABLE, OPT_REPLICATE_SAME_SERVER_ID, OPT_DISCONNECT_SLAVE_EVENT_COUNT, OPT_TC_HEURISTIC_RECOVER, OPT_ABORT_SLAVE_EVENT_COUNT, OPT_LOG_BIN_TRUST_FUNCTION_CREATORS, OPT_LOG_BIN_TRUST_FUNCTION_CREATORS_OLD, OPT_ENGINE_CONDITION_PUSHDOWN, OPT_NDB_CONNECTSTRING, OPT_NDB_USE_EXACT_COUNT, OPT_NDB_USE_TRANSACTIONS, OPT_NDB_FORCE_SEND, OPT_NDB_AUTOINCREMENT_PREFETCH_SZ, OPT_NDB_SHM, OPT_NDB_OPTIMIZED_NODE_SELECTION, OPT_NDB_CACHE_CHECK_TIME, OPT_NDB_MGMD, OPT_NDB_NODEID, OPT_NDB_DISTRIBUTION, OPT_NDB_INDEX_STAT_ENABLE, OPT_NDB_EXTRA_LOGGING, OPT_NDB_REPORT_THRESH_BINLOG_EPOCH_SLIP, OPT_NDB_REPORT_THRESH_BINLOG_MEM_USAGE, OPT_NDB_USE_COPYING_ALTER_TABLE, OPT_SAFEMALLOC, OPT_MUTEX_DEADLOCK_DETECTOR, OPT_TEMP_POOL, OPT_TX_ISOLATION, OPT_COMPLETION_TYPE, OPT_SKIP_SYMLINKS, OPT_MAX_BINLOG_DUMP_EVENTS, OPT_SPORADIC_BINLOG_DUMP_FAIL, OPT_SAFE_USER_CREATE, OPT_SQL_MODE, OPT_HAVE_NAMED_PIPE, OPT_DO_PSTACK, OPT_EVENT_SCHEDULER, OPT_REPORT_HOST, OPT_REPORT_USER, OPT_REPORT_PASSWORD, OPT_REPORT_PORT, OPT_SHOW_SLAVE_AUTH_INFO, OPT_SLAVE_LOAD_TMPDIR, OPT_NO_MIX_TYPE, OPT_RPL_RECOVERY_RANK,OPT_INIT_RPL_ROLE, OPT_RELAY_LOG, OPT_RELAY_LOG_INDEX, OPT_RELAY_LOG_INFO_FILE, OPT_SLAVE_SKIP_ERRORS, OPT_DES_KEY_FILE, OPT_LOCAL_INFILE, OPT_SSL_SSL, OPT_SSL_KEY, OPT_SSL_CERT, OPT_SSL_CA, OPT_SSL_CAPATH, OPT_SSL_CIPHER, OPT_BACK_LOG, OPT_BINLOG_CACHE_SIZE, OPT_CONNECT_TIMEOUT, OPT_DELAYED_INSERT_TIMEOUT, OPT_DELAYED_INSERT_LIMIT, OPT_DELAYED_QUEUE_SIZE, OPT_FLUSH_TIME, OPT_FT_MIN_WORD_LEN, OPT_FT_BOOLEAN_SYNTAX, OPT_FT_MAX_WORD_LEN, OPT_FT_QUERY_EXPANSION_LIMIT, OPT_FT_STOPWORD_FILE, OPT_INTERACTIVE_TIMEOUT, OPT_JOIN_BUFF_SIZE, OPT_KEY_BUFFER_SIZE, OPT_KEY_CACHE_BLOCK_SIZE, OPT_KEY_CACHE_DIVISION_LIMIT, OPT_KEY_CACHE_AGE_THRESHOLD, OPT_KEY_CACHE_PARTITIONS, OPT_LONG_QUERY_TIME, OPT_LOWER_CASE_TABLE_NAMES, OPT_MAX_ALLOWED_PACKET, OPT_MAX_BINLOG_CACHE_SIZE, OPT_MAX_BINLOG_SIZE, OPT_MAX_CONNECTIONS, OPT_MAX_CONNECT_ERRORS, OPT_MAX_DELAYED_THREADS, OPT_MAX_HEP_TABLE_SIZE, OPT_MAX_JOIN_SIZE, OPT_MAX_PREPARED_STMT_COUNT, OPT_MAX_RELAY_LOG_SIZE, OPT_MAX_SORT_LENGTH, OPT_MAX_SEEKS_FOR_KEY, OPT_MAX_TMP_TABLES, OPT_MAX_USER_CONNECTIONS, OPT_MAX_LENGTH_FOR_SORT_DATA, OPT_MAX_WRITE_LOCK_COUNT, OPT_BULK_INSERT_BUFFER_SIZE, OPT_MAX_ERROR_COUNT, OPT_MULTI_RANGE_COUNT, OPT_MYISAM_DATA_POINTER_SIZE, OPT_MYISAM_BLOCK_SIZE, OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE, OPT_MYISAM_MAX_SORT_FILE_SIZE, OPT_MYISAM_SORT_BUFFER_SIZE, OPT_MYISAM_USE_MMAP, OPT_MYISAM_REPAIR_THREADS, OPT_MYISAM_MMAP_SIZE, OPT_MYISAM_STATS_METHOD, OPT_PAGECACHE_BUFFER_SIZE, OPT_PAGECACHE_DIVISION_LIMIT, OPT_PAGECACHE_AGE_THRESHOLD, OPT_NET_BUFFER_LENGTH, OPT_NET_RETRY_COUNT, OPT_NET_READ_TIMEOUT, OPT_NET_WRITE_TIMEOUT, OPT_OPEN_FILES_LIMIT, OPT_PRELOAD_BUFFER_SIZE, OPT_QUERY_CACHE_LIMIT, OPT_QUERY_CACHE_MIN_RES_UNIT, OPT_QUERY_CACHE_SIZE, OPT_QUERY_CACHE_TYPE, OPT_QUERY_CACHE_WLOCK_INVALIDATE, OPT_RECORD_BUFFER, OPT_RECORD_RND_BUFFER, OPT_DIV_PRECINCREMENT, OPT_RELAY_LOG_SPACE_LIMIT, OPT_RELAY_LOG_PURGE, OPT_SLAVE_NET_TIMEOUT, OPT_SLAVE_COMPRESSED_PROTOCOL, OPT_SLOW_LAUNCH_TIME, OPT_SLAVE_TRANS_RETRIES, OPT_READONLY, OPT_DEBUGGING, OPT_DEBUG_FLUSH, OPT_SORT_BUFFER, OPT_TABLE_OPEN_CACHE, OPT_TABLE_DEF_CACHE, OPT_THREAD_CONCURRENCY, OPT_THREAD_CACHE_SIZE, OPT_TMP_TABLE_SIZE, OPT_THREAD_STACK, OPT_WAIT_TIMEOUT, OPT_ERROR_LOG_FILE, OPT_DEFAULT_WEEK_FORMAT, OPT_RANGE_ALLOC_BLOCK_SIZE, OPT_ALLOW_SUSPICIOUS_UDFS, OPT_QUERY_ALLOC_BLOCK_SIZE, OPT_QUERY_PREALLOC_SIZE, OPT_TRANS_ALLOC_BLOCK_SIZE, OPT_TRANS_PREALLOC_SIZE, OPT_SYNC_FRM, OPT_SYNC_BINLOG, OPT_SYNC, OPT_SYNC_REPLICATION, OPT_SYNC_REPLICATION_SLAVE_ID, OPT_SYNC_REPLICATION_TIMEOUT, OPT_ENABLE_SHARED_MEMORY, OPT_SHARED_MEMORY_BASE_NAME, OPT_OLD_PASSWORDS, OPT_OLD_ALTER_TABLE, OPT_EXPIRE_LOGS_DAYS, OPT_GROUP_CONCAT_MAX_LEN, OPT_DEFAULT_COLLATION, OPT_DEFAULT_COLLATION_OLD, OPT_CHARACTER_SET_CLIENT_HANDSHAKE, OPT_CHARACTER_SET_FILESYSTEM, OPT_LC_TIME_NAMES, OPT_INIT_CONNECT, OPT_INIT_SLAVE, OPT_SECURE_AUTH, OPT_DATE_FORMAT, OPT_TIME_FORMAT, OPT_DATETIME_FORMAT, OPT_LOG_QUERIES_NOT_USING_INDEXES, OPT_DEFAULT_TIME_ZONE, OPT_SYSDATE_IS_NOW, OPT_OPTIMIZER_SEARCH_DEPTH, OPT_OPTIMIZER_PRUNE_LEVEL, OPT_OPTIMIZER_SWITCH, OPT_UPDATABLE_VIEWS_WITH_LIMIT, OPT_SP_AUTOMATIC_PRIVILEGES, OPT_MAX_SP_RECURSION_DEPTH, OPT_AUTO_INCREMENT, OPT_AUTO_INCREMENT_OFFSET, OPT_ENABLE_LARGE_PAGES, OPT_TIMED_MUTEXES, OPT_OLD_STYLE_USER_LIMITS, OPT_LOG_SLOW_ADMIN_STATEMENTS, OPT_TABLE_LOCK_WAIT_TIMEOUT, OPT_PLUGIN_LOAD, OPT_PLUGIN_DIR, OPT_PLUGIN_MATURITY, OPT_SYMBOLIC_LINKS, OPT_WARNINGS, OPT_RECORD_BUFFER_OLD, OPT_LOG_OUTPUT, OPT_PORT_OPEN_TIMEOUT, OPT_PROFILING, OPT_KEEP_FILES_ON_CREATE, OPT_GENERAL_LOG, OPT_SLOW_LOG, OPT_LOG_BASENAME, OPT_THREAD_HANDLING, OPT_INNODB_ROLLBACK_ON_TIMEOUT, OPT_SECURE_FILE_PRIV, OPT_MIN_EXAMINED_ROW_LIMIT, OPT_LOG_SLOW_SLAVE_STATEMENTS, OPT_DEBUG_CRC, OPT_DEBUG_ON, OPT_DEBUG_ASSERT_IF_CRASHED_TABLE, OPT_DEBUG_ASSERT_ON_ERROR, OPT_OLD_MODE, OPT_TEST_IGNORE_WRONG_OPTIONS, OPT_TEST_RESTART, #if defined(ENABLED_DEBUG_SYNC) OPT_DEBUG_SYNC_TIMEOUT, #endif /* defined(ENABLED_DEBUG_SYNC) */ OPT_DEPRECATED_OPTION, OPT_SLAVE_EXEC_MODE, OPT_DEADLOCK_SEARCH_DEPTH_SHORT, OPT_DEADLOCK_SEARCH_DEPTH_LONG, OPT_DEADLOCK_TIMEOUT_SHORT, OPT_DEADLOCK_TIMEOUT_LONG, OPT_LOG_SLOW_RATE_LIMIT, OPT_LOG_SLOW_VERBOSITY, OPT_LOG_SLOW_FILTER, OPT_USERSTAT, OPT_GENERAL_LOG_FILE, OPT_SLOW_QUERY_LOG_FILE, OPT_IGNORE_BUILTIN_INNODB, OPT_BINLOG_DIRECT_NON_TRANS_UPDATE, OPT_DEFAULT_CHARACTER_SET_OLD, OPT_MAX_LONG_DATA_SIZE }; #define LONG_TIMEOUT ((ulong) 3600L*24L*365L) 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}, #ifdef HAVE_REPLICATION {"abort-slave-event-count", OPT_ABORT_SLAVE_EVENT_COUNT, "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 */ {"allow-suspicious-udfs", OPT_ALLOW_SUSPICIOUS_UDFS, "Allows use of UDFs consisting of only one symbol xxx() " "without corresponding xxx_init() or xxx_deinit(). That also means " "that one can load any function from any library, for example exit() " "from libc.so", &opt_allow_suspicious_udfs, &opt_allow_suspicious_udfs, 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}, {"auto-increment-increment", OPT_AUTO_INCREMENT, "Auto-increment columns are incremented by this.", &global_system_variables.auto_increment_increment, &max_system_variables.auto_increment_increment, 0, GET_ULONG, OPT_ARG, 1, 1, 65535, 0, 1, 0 }, {"auto-increment-offset", OPT_AUTO_INCREMENT_OFFSET, "Offset added to Auto-increment columns. Used when auto-increment-increment != 1.", &global_system_variables.auto_increment_offset, &max_system_variables.auto_increment_offset, 0, GET_ULONG, OPT_ARG, 1, 1, 65535, 0, 1, 0 }, {"automatic-sp-privileges", OPT_SP_AUTOMATIC_PRIVILEGES, "Creating and dropping stored procedures alters ACLs. Disable with --skip-automatic-sp-privileges.", &sp_automatic_privileges, &sp_automatic_privileges, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, {"basedir", 'b', "Path to installation directory. All paths are usually resolved relative to this.", &mysql_home_ptr, &mysql_home_ptr, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"big-tables", OPT_BIG_TABLES, "Allow big result sets by saving all temporary sets on file (solves most 'table full' errors).", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"bind-address", OPT_BIND_ADDRESS, "IP address to bind to.", &my_bind_addr_str, &my_bind_addr_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"binlog_format", OPT_BINLOG_FORMAT, "Does not have any effect without '--log-bin'. " "Tell the master the form of binary logging to use: either 'row' for " "row-based binary logging, 'statement' for statement-based binary " "logging, or 'mixed'. 'mixed' is statement-based binary logging except " "for statements where only row-based is correct: Statements that involve " "user-defined functions (i.e., UDFs) or the UUID() function." #ifdef HAVE_NDB_BINLOG "If ndbcluster is enabled and binlog_format is `mixed', the format switches" " to 'row' and back implicitly per each query accessing a NDB table." #endif , &opt_binlog_format, &opt_binlog_format, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"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", OPT_BINLOG_ROWS_EVENT_MAX_SIZE, "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 */ 1024, /* min_value */ 256, /* max_value */ ULONG_MAX, /* 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", OPT_CHARACTER_SET_CLIENT_HANDSHAKE, "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", OPT_CHARACTER_SET_FILESYSTEM, "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 }, {"character-sets-dir", OPT_CHARSETS_DIR, "Directory where character sets are.", &charsets_dir, &charsets_dir, 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", OPT_DEFAULT_COLLATION, "Set the default collation.", &default_collation_name, &default_collation_name, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, {"completion-type", OPT_COMPLETION_TYPE, "Default completion type.", &global_system_variables.completion_type, &max_system_variables.completion_type, 0, GET_ULONG, REQUIRED_ARG, 0, 0, 2, 0, 1, 0}, {"concurrent-insert", OPT_CONCURRENT_INSERT, "Use concurrent insert with MyISAM. Disable with --concurrent-insert=0.", &myisam_concurrent_insert, &myisam_concurrent_insert, 0, GET_ULONG, OPT_ARG, 1, 0, 2, 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}, {"core-file", OPT_WANT_CORE, "Write core on errors.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"datadir", 'h', "Path to the database root.", &mysql_data_home, &mysql_data_home, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"deadlock-search-depth-short", OPT_DEADLOCK_SEARCH_DEPTH_SHORT, "Short search depth for the two-step deadlock detection", &global_system_variables.wt_deadlock_search_depth_short, &max_system_variables.wt_deadlock_search_depth_short, 0, GET_ULONG, REQUIRED_ARG, 4, 0, 32, 0, 0, 0}, {"deadlock-search-depth-long", OPT_DEADLOCK_SEARCH_DEPTH_LONG, "Long search depth for the two-step deadlock detection", &global_system_variables.wt_deadlock_search_depth_long, &max_system_variables.wt_deadlock_search_depth_long, 0, GET_ULONG, REQUIRED_ARG, 15, 0, 33, 0, 0, 0}, {"deadlock-timeout-short", OPT_DEADLOCK_TIMEOUT_SHORT, "Short timeout for the two-step deadlock detection (in microseconds)", &global_system_variables.wt_timeout_short, &max_system_variables.wt_timeout_short, 0, GET_ULONG, REQUIRED_ARG, 10000, 0, ULONG_MAX, 0, 0, 0}, {"deadlock-timeout-long", OPT_DEADLOCK_TIMEOUT_LONG, "Long timeout for the two-step deadlock detection (in microseconds)", &global_system_variables.wt_timeout_long, &max_system_variables.wt_timeout_long, 0, GET_ULONG, REQUIRED_ARG, 50000000, 0, ULONG_MAX, 0, 0, 0}, #ifndef DBUG_OFF {"debug", '#', "Debug log.", ¤t_dbug_option, ¤t_dbug_option, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"debug-crc-break", OPT_DEBUG_CRC, "Call my_debug_put_break_here() if crc matches this number (for debug).", &opt_my_crc_dbug_check, &opt_my_crc_dbug_check, 0, GET_ULONG, REQUIRED_ARG, 0, 0, ~(ulong) 0L, 0, 0, 0}, {"debug-flush", OPT_DEBUG_FLUSH, "Default debug log with flush after write", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"debug-assert-if-crashed-table", OPT_DEBUG_ASSERT_IF_CRASHED_TABLE, "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}, {"debug-assert-on-error", OPT_DEBUG_ASSERT_ON_ERROR, "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}, #endif {"default-character-set", OPT_DEFAULT_CHARACTER_SET_OLD, "Set the default character set (deprecated option, use --character-set-server instead).", &default_character_set_name, &default_character_set_name, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, {"default-collation", OPT_DEFAULT_COLLATION_OLD, "Set the default collation " "(deprecated option, use --collation-server instead).", &default_collation_name, &default_collation_name, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, {"default-storage-engine", OPT_STORAGE_ENGINE, "Set the default storage engine (table type) for tables.", &default_storage_engine_str, &default_storage_engine_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"default-table-type", OPT_STORAGE_ENGINE, "(deprecated) Use --default-storage-engine.", &default_storage_engine_str, &default_storage_engine_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"default-time-zone", OPT_DEFAULT_TIME_ZONE, "Set the default time zone.", &default_tz_name, &default_tz_name, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, {"delay-key-write", OPT_DELAY_KEY_WRITE, "Type of DELAY_KEY_WRITE.", 0,0,0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"delay-key-write-for-all-tables", OPT_DELAY_KEY_WRITE_ALL, "Don't flush key buffers between writes for any MyISAM table. " "(Deprecated option, use --delay-key-write=all instead.)", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_OPENSSL {"des-key-file", OPT_DES_KEY_FILE, "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_REPLICATION {"disconnect-slave-event-count", OPT_DISCONNECT_SLAVE_EVENT_COUNT, "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 */ {"enable-locking", OPT_ENABLE_LOCK, "Deprecated option, use --external-locking instead.", &opt_external_locking, &opt_external_locking, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifdef __NT__ {"enable-named-pipe", OPT_HAVE_NAMED_PIPE, "Enable the named pipe (NT).", &opt_enable_named_pipe, &opt_enable_named_pipe, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #endif #ifdef HAVE_STACKTRACE {"stack-trace", OPT_DO_PSTACK, "Print a symbolic stack trace on failure. " "On by default. Disable with --disable-stack-trace.", &opt_stack_trace, &opt_stack_trace, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, #endif /* HAVE_STACKTRACE */ {"engine-condition-pushdown", OPT_ENGINE_CONDITION_PUSHDOWN, "Push supported query conditions to the storage engine.", &global_system_variables.engine_condition_pushdown, &global_system_variables.engine_condition_pushdown, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, /* See how it's handled in get_one_option() */ {"event-scheduler", OPT_EVENT_SCHEDULER, "Enable/disable the event scheduler.", NULL, NULL, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"exit-info", 'T', "Used for debugging. Use at your own risk.", 0, 0, 0, GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"external-locking", OPT_USE_LOCKING, "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}, {"flush", OPT_FLUSH, "Flush tables to disk between SQL commands.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, /* We must always support the next option to make scripts like mysqltest easier to do */ {"extra-port", OPT_EXTRA_PORT, "Extra port number to use for tcp-connections in a one-thread-per-connection manner. 0 means don't use another port", &mysqld_extra_port, &mysqld_extra_port, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"extra-max-connections", OPT_MAX_CONNECTIONS, "The number of connections on 'extra-port.", &extra_max_connections, &extra_max_connections, 0, GET_ULONG, REQUIRED_ARG, 1, 1, 100000, 0, 1, 0}, {"gdb", OPT_DEBUGGING, "Set up signals usable for debugging.", &opt_debugging, &opt_debugging, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"general_log", OPT_GENERAL_LOG, "Enable/disable general log. Filename can be specified with --general-log-file or --log-basename. Is 'hostname.log' by default.", &opt_log, &opt_log, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_LARGE_PAGES {"large-pages", OPT_ENABLE_LARGE_PAGES, "Enable support for large pages. " "Disable with --skip-large-pages.", &opt_large_pages, &opt_large_pages, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #endif {"ignore-builtin-innodb", OPT_IGNORE_BUILTIN_INNODB , "Disable initialization of builtin InnoDB plugin.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"init-connect", OPT_INIT_CONNECT, "Command(s) that are executed for each new connection.", &opt_init_connect, &opt_init_connect, 0, GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #ifndef DISABLE_GRANT_OPTIONS {"init-file", OPT_INIT_FILE, "Read SQL commands from this file at startup.", &opt_init_file, &opt_init_file, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #endif {"init-rpl-role", OPT_INIT_RPL_ROLE, "Set the replication role.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"init-slave", OPT_INIT_SLAVE, "Command(s) that are executed by a slave server \ each time the SQL thread starts.", &opt_init_slave, &opt_init_slave, 0, GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"language", 'L', "Client error messages in given language. May be given as a full path.", &language_ptr, &language_ptr, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"lc-time-names", OPT_LC_TIME_NAMES, "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 }, {"local-infile", OPT_LOCAL_INFILE, "Enable/disable LOAD DATA LOCAL INFILE (takes values 1 or 0).", &opt_local_infile, &opt_local_infile, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"log", 'l', "Log connections and queries to file (deprecated option, use " "--general_log/--general_log_file instead).", &opt_logname, &opt_logname, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"general_log_file", OPT_GENERAL_LOG_FILE, "Log connections and queries to given file. Defaults to " "'datadir'/'log-basename'.log or 'datadir'/'hostname'.log if not " "specified.", &opt_logname, &opt_logname, 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. This is especially recommend to be set if you " "are using replication as it ensures that your log file names are not " "depending on your host name. Sets names for --log-bin, --log-bin-index, " "--relay-log, --relay-log-index, --general-log-file, " "--log-slow-query-log-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 you 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", OPT_BIN_LOG_INDEX, "File that holds the names for last binary log files. If not specified, " "defaults to 'datadir/log-basename'-bin.index or 'datadir/mysql-bin.index'", &opt_binlog_index_name, &opt_binlog_index_name, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #ifndef TO_BE_REMOVED_IN_5_1_OR_6_0 /* In 5.0.6 we introduced the below option, then in 5.0.16 we renamed it to log-bin-trust-function-creators but kept also the old name for compatibility; the behaviour was also changed to apply only to functions (and triggers). In a future release this old name could be removed. */ {"log-bin-trust-routine-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS_OLD, "(deprecated) Use log-bin-trust-function-creators.", &trust_function_creators, &trust_function_creators, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #endif /* This option starts with "log-bin" to emphasize that it is specific of binary logging. */ {"log-bin-trust-function-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS, "If equal to 0 (the default), then when --log-bin is used, creation of " "a stored function (or trigger) is allowed only to users having the SUPER " "privilege, and only if this stored function (trigger) may not break " "binary logging." "Note that if ALL connections to this server ALWAYS use row-based binary " "logging, the security issues do not exist and the binary logging cannot " "break, so you can safely set this to 1." ,&trust_function_creators, &trust_function_creators, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"log-error", OPT_ERROR_LOG_FILE, "Log errors to file (instead of stdout). If file name is not specified " "then 'datadir'/'log-basename'.err or the pid-file path with extension " ".err is used.", &log_error_file_ptr, &log_error_file_ptr, 0, GET_STR, OPT_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-long-format", '0', "Log some extra information to update log. Please note that this option " "is deprecated; see --log-short-format option.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"log-output", OPT_LOG_OUTPUT, "Syntax: log-output[=value[,value...]], where \"value\" could be TABLE, " "FILE or NONE.", &log_output_str, &log_output_str, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"log-queries-not-using-indexes", OPT_LOG_QUERIES_NOT_USING_INDEXES, "Log queries that are executed without benefit of any index to the slow log if it is open.", &opt_log_queries_not_using_indexes, &opt_log_queries_not_using_indexes, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"log-short-format", OPT_SHORT_LOG_FORMAT, "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-slave-updates", OPT_LOG_SLAVE_UPDATES, "Tells the slave to log the updates from the slave thread to the binary log. " "You will need to turn it on if you plan to daisy-chain the slaves.", &opt_log_slave_updates, &opt_log_slave_updates, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"log-slow-admin-statements", OPT_LOG_SLOW_ADMIN_STATEMENTS, "Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements " "to the slow log if it is open.", &opt_log_slow_admin_statements, &opt_log_slow_admin_statements, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"log-slow-slave-statements", OPT_LOG_SLOW_SLAVE_STATEMENTS, "Log slow statements executed by slave thread to the slow log if it is open.", &opt_log_slow_slave_statements, &opt_log_slow_slave_statements, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"log-slow-queries", OPT_SLOW_QUERY_LOG, "Enable logging of slow queries (longer than --log-slow-time) to log file " "or table. Optional argument is file name for slow log. If not given, " "'log-basename'-slow.log will be used. Use --log-output=TABLE if you want " "to have the log in the table 'mysql.slow_log'", &opt_slow_logname, &opt_slow_logname, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"slow_query_log_file", OPT_SLOW_QUERY_LOG_FILE, "Specify name for slow query log. Defaults to 'log-basename'-slow.log if " "not given", &opt_slow_logname, &opt_slow_logname, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"log-slow-file", OPT_SLOW_QUERY_LOG_FILE, "Specify name for slow query log. Defaults to 'log-basename'-slow.log if " "not given", &opt_slow_logname, &opt_slow_logname, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"log-tc", OPT_LOG_TC, "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}, #ifdef HAVE_MMAP {"log-tc-size", OPT_LOG_TC_SIZE, "Size of transaction coordinator log.", &opt_tc_log_size, &opt_tc_log_size, 0, GET_ULONG, REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, (longlong) ULONG_MAX, 0, TC_LOG_PAGE_SIZE, 0}, #endif {"log-update", OPT_UPDATE_LOG, "The update log is deprecated since version 5.0, is replaced by the binary " "log and this option just turns on --log-bin instead.", &opt_update_logname, &opt_update_logname, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"log-warnings", 'W', "Log some not critical warnings to the general log file. Value can be between 0-11; The higher value, the more warnings", &global_system_variables.log_warnings, &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"low-priority-updates", OPT_LOW_PRIORITY_UPDATES, "INSERT/DELETE/UPDATE has lower priority than selects.", &global_system_variables.low_priority_updates, &max_system_variables.low_priority_updates, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"master-connect-retry", OPT_MASTER_CONNECT_RETRY, "The number of seconds the slave thread will sleep before retrying to " "connect to the master, in case the master goes down or the connection " "is lost.", &master_connect_retry, &master_connect_retry, 0, GET_UINT, REQUIRED_ARG, 60, 0, 0, 0, 0, 0}, {"master-host", OPT_MASTER_HOST, "Master hostname or IP address for replication. If not set, the slave " "thread will not be started. Note that the setting of master-host will " "be ignored if there exists a valid master.info file.", &master_host, &master_host, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"master-info-file", OPT_MASTER_INFO_FILE, "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. Is not affected by --log-basename.", &master_info_file, &master_info_file, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"master-password", OPT_MASTER_PASSWORD, "The password the slave thread will authenticate with when connecting to " "the master. If not set, an empty password is assumed. The value in " "master.info will take precedence if it can be read.", &master_password, &master_password, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"master-port", OPT_MASTER_PORT, "The port the master is listening on. If not set, the compiled setting of " "MYSQL_PORT is assumed. If you have not tinkered with configure options, " "this should be 3306. The value in master.info will take precedence if it " "can be read.", &master_port, &master_port, 0, GET_UINT, REQUIRED_ARG, MYSQL_PORT, 0, 0, 0, 0, 0}, {"master-retry-count", OPT_MASTER_RETRY_COUNT, "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, 3600*24, 0, 0, 0, 0, 0}, {"master-ssl", OPT_MASTER_SSL, "Enable the slave to connect to the master using SSL.", &master_ssl, &master_ssl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"master-ssl-ca", OPT_MASTER_SSL_CA, "Master SSL CA file. Only applies if you have enabled master-ssl.", &master_ssl_ca, &master_ssl_ca, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"master-ssl-capath", OPT_MASTER_SSL_CAPATH, "Master SSL CA path. Only applies if you have enabled master-ssl.", &master_ssl_capath, &master_ssl_capath, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"master-ssl-cert", OPT_MASTER_SSL_CERT, "Master SSL certificate file name. Only applies if you have enabled " "master-ssl.", &master_ssl_cert, &master_ssl_cert, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"master-ssl-cipher", OPT_MASTER_SSL_CIPHER, "Master SSL cipher. Only applies if you have enabled master-ssl.", &master_ssl_cipher, &master_ssl_capath, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"master-ssl-key", OPT_MASTER_SSL_KEY, "Master SSL keyfile name. Only applies if you have enabled master-ssl.", &master_ssl_key, &master_ssl_key, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"master-user", OPT_MASTER_USER, "The username the slave thread will use for authentication when " "connecting to the master. The user must have FILE privilege. " "If the master user is not set, user test is assumed. The value " "in master.info will take precedence if it can be read.", &master_user, &master_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_REPLICATION {"max-binlog-dump-events", OPT_MAX_BINLOG_DUMP_EVENTS, "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 */ {"memlock", OPT_MEMLOCK, "Lock mysqld in memory.", &locked_in_memory, &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifdef SAFE_MUTEX {"mutex-deadlock-detector", OPT_MUTEX_DEADLOCK_DETECTOR, "Enable checking of wrong mutex usage.", &safe_mutex_deadlock_detector, &safe_mutex_deadlock_detector, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, #endif {"myisam-recover", OPT_MYISAM_RECOVER, "Syntax: myisam-recover=OFF or myisam-recover[=option[,option...]], where option can be DEFAULT, BACKUP, BACKUP_ALL, FORCE or QUICK.", &myisam_recover_options_str, &myisam_recover_options_str, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, #ifdef WITH_NDBCLUSTER_STORAGE_ENGINE {"ndb-connectstring", OPT_NDB_CONNECTSTRING, "Connect string for ndbcluster.", &opt_ndb_connectstring, &opt_ndb_connectstring, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"ndb-mgmd-host", OPT_NDB_MGMD, "Set host and port for ndb_mgmd. Syntax: hostname[:port]", &opt_ndb_mgmd, &opt_ndb_mgmd, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"ndb-nodeid", OPT_NDB_NODEID, "Nodeid for this mysqlserver in the cluster.", &opt_ndb_nodeid, &opt_ndb_nodeid, 0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"ndb-autoincrement-prefetch-sz", OPT_NDB_AUTOINCREMENT_PREFETCH_SZ, "Specify number of autoincrement values that are prefetched.", &global_system_variables.ndb_autoincrement_prefetch_sz, &max_system_variables.ndb_autoincrement_prefetch_sz, 0, GET_ULONG, REQUIRED_ARG, 1, 1, 256, 0, 0, 0}, {"ndb-force-send", OPT_NDB_FORCE_SEND, "Force send of buffers to ndb immediately without waiting for " "other threads.", &global_system_variables.ndb_force_send, &global_system_variables.ndb_force_send, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"ndb_force_send", OPT_NDB_FORCE_SEND, "same as --ndb-force-send.", &global_system_variables.ndb_force_send, &global_system_variables.ndb_force_send, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"ndb-extra-logging", OPT_NDB_EXTRA_LOGGING, "Turn on more logging in the error log.", &ndb_extra_logging, &ndb_extra_logging, 0, GET_INT, OPT_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_NDB_BINLOG {"ndb-report-thresh-binlog-epoch-slip", OPT_NDB_REPORT_THRESH_BINLOG_EPOCH_SLIP, "Threshold on number of epochs to be behind before reporting binlog status. " "E.g., 3 means that if the difference between what epoch has been received " "from the storage nodes and what has been applied to the binlog is 3 or more, " "a status message will be sent to the cluster log.", &ndb_report_thresh_binlog_epoch_slip, &ndb_report_thresh_binlog_epoch_slip, 0, GET_ULONG, REQUIRED_ARG, 3, 0, 256, 0, 0, 0}, {"ndb-report-thresh-binlog-mem-usage", OPT_NDB_REPORT_THRESH_BINLOG_MEM_USAGE, "Threshold on percentage of free memory before reporting binlog status. E.g., " "10 means that if amount of available memory for receiving binlog data from " "the storage nodes goes below 10%, " "a status message will be sent to the cluster log.", &ndb_report_thresh_binlog_mem_usage, &ndb_report_thresh_binlog_mem_usage, 0, GET_ULONG, REQUIRED_ARG, 10, 0, 100, 0, 0, 0}, #endif {"ndb-use-exact-count", OPT_NDB_USE_EXACT_COUNT, "Use exact records count during query planning and for fast " "select count(*), disable for faster queries.", &global_system_variables.ndb_use_exact_count, &global_system_variables.ndb_use_exact_count, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"ndb_use_exact_count", OPT_NDB_USE_EXACT_COUNT, "Same as --ndb-use-exact-count.", &global_system_variables.ndb_use_exact_count, &global_system_variables.ndb_use_exact_count, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"ndb-use-transactions", OPT_NDB_USE_TRANSACTIONS, "Use transactions for large inserts, if enabled then large " "inserts will be split into several smaller transactions", &global_system_variables.ndb_use_transactions, &global_system_variables.ndb_use_transactions, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"ndb_use_transactions", OPT_NDB_USE_TRANSACTIONS, "Same as --ndb-use-transactions.", &global_system_variables.ndb_use_transactions, &global_system_variables.ndb_use_transactions, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, {"ndb-shm", OPT_NDB_SHM, "Use shared memory connections when available.", &opt_ndb_shm, &opt_ndb_shm, 0, GET_BOOL, OPT_ARG, OPT_NDB_SHM_DEFAULT, 0, 0, 0, 0, 0}, {"ndb-optimized-node-selection", OPT_NDB_OPTIMIZED_NODE_SELECTION, "Select nodes for transactions in a more optimal way.", &opt_ndb_optimized_node_selection, &opt_ndb_optimized_node_selection, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, { "ndb-cache-check-time", OPT_NDB_CACHE_CHECK_TIME, "A dedicated thread is created to, at the given milliseconds interval, " "invalidate the query cache if another MySQL server in the cluster has " "changed the data in the database.", &opt_ndb_cache_check_time, &opt_ndb_cache_check_time, 0, GET_ULONG, REQUIRED_ARG, 0, 0, LONG_TIMEOUT, 0, 1, 0}, {"ndb-index-stat-enable", OPT_NDB_INDEX_STAT_ENABLE, "Use ndb index statistics in query optimization.", &global_system_variables.ndb_index_stat_enable, &max_system_variables.ndb_index_stat_enable, 0, GET_BOOL, OPT_ARG, 0, 0, 1, 0, 0, 0}, #endif {"ndb-use-copying-alter-table", OPT_NDB_USE_COPYING_ALTER_TABLE, "Force ndbcluster to always copy tables at alter table " "(should only be used if on-line alter table fails).", &global_system_variables.ndb_use_copying_alter_table, &global_system_variables.ndb_use_copying_alter_table, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"new", 'n', "Use very new, possibly 'unsafe', functions.", &global_system_variables.new_mode, &max_system_variables.new_mode, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifdef NOT_YET {"no-mix-table-types", OPT_NO_MIX_TYPE, "Don't allow commands that use two different table types.", &opt_no_mix_types, &opt_no_mix_types, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #endif {"old-alter-table", OPT_OLD_ALTER_TABLE, "Use old, non-optimized alter table.", &global_system_variables.old_alter_table, &max_system_variables.old_alter_table, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"old-passwords", OPT_OLD_PASSWORDS, "Use old password " "encryption method (needed for 4.0 and older clients).", &global_system_variables.old_passwords, &max_system_variables.old_passwords, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"one-thread", OPT_ONE_THREAD, "(Deprecated): Only use one thread (for debugging under Linux). Use " "thread-handling=no-threads instead.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"old-style-user-limits", OPT_OLD_STYLE_USER_LIMITS, "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}, {"pid-file", OPT_PID_FILE, "Pid file used by safe_mysqld. If not set, defaults to " "'datadir'/'log-basename'.pid or 'datadir'/'hostname'.pid'.", &pidfile_name_ptr, &pidfile_name_ptr, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"port", 'P', "Port number to use for connection or 0 for default to, in " "order of preference, my.cnf, $MYSQL_TCP_PORT, " #if MYSQL_PORT_DEFAULT == 0 "/etc/services, " #endif "built-in default (" STRINGIFY_ARG(MYSQL_PORT) ").", &mysqld_port, &mysqld_port, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"port-open-timeout", OPT_PORT_OPEN_TIMEOUT, "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}, #if defined(ENABLED_PROFILING) && defined(COMMUNITY_SERVER) {"profiling_history_size", OPT_PROFILING, "Limit of query profiling memory.", &global_system_variables.profiling_history_size, &max_system_variables.profiling_history_size, 0, GET_ULONG, REQUIRED_ARG, 15, 0, 100, 0, 0, 0}, #endif {"relay-log", OPT_RELAY_LOG, "The location and name to use for relay logs. If not specified " "'datadir'/'log-basename' will be used.", &opt_relay_logname, &opt_relay_logname, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"relay-log-index", OPT_RELAY_LOG_INDEX, "The location and name to use for the file that keeps a list of the last " "relay logs. If not specified 'datadir'/'log-basename' will be used.", &opt_relaylog_index_name, &opt_relaylog_index_name, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"relay-log-info-file", OPT_RELAY_LOG_INFO_FILE, "The location and name of the file that remembers where the SQL " "replication thread is in the relay logs. Defaults to relay-log.info. " "Is not affected by '--log-basename'.", &relay_log_info_file, &relay_log_info_file, 0, GET_STR, 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, 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, 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, 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, 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, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_REPLICATION {"replicate-same-server-id", OPT_REPLICATE_SAME_SERVER_ID, "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, 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, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, // In replication, we may need to tell the other servers how to connect {"report-host", OPT_REPORT_HOST, "Hostname or IP of the slave to be reported to the master during slave " "registration. Will appear in the output of SHOW SLAVE HOSTS. Leave unset " "if you do not want the slave to register itself with the master. Note that " "it is not sufficient for the master to simply read the IP of the slave " "from the socket once the slave connects. Due to NAT and other routing " "issues, that IP may not be valid for connecting to the slave from the " "master or other hosts.", &report_host, &report_host, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"report-password", OPT_REPORT_PASSWORD, "Undocumented.", &report_password, &report_password, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"report-port", OPT_REPORT_PORT, "Port for connecting to slave reported to the master during slave " "registration. Set it only if the slave is listening on a non-default " "port or if you have a special tunnel from the master or other clients " "to the slave. If not sure, leave this option unset.", &report_port, &report_port, 0, GET_UINT, REQUIRED_ARG, MYSQL_PORT, 0, 0, 0, 0, 0}, {"report-user", OPT_REPORT_USER, "Undocumented.", &report_user, &report_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"rpl-recovery-rank", OPT_RPL_RECOVERY_RANK, "Undocumented.", &rpl_recovery_rank, &rpl_recovery_rank, 0, GET_ULONG, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"safe-mode", OPT_SAFE, "Skip some optimize stages (for testing).", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifndef TO_BE_DELETED {"safe-show-database", OPT_SAFE_SHOW_DB, "Deprecated option; use GRANT SHOW DATABASES instead.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, #endif {"safe-user-create", OPT_SAFE_USER_CREATE, "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}, {"safemalloc-mem-limit", OPT_SAFEMALLOC_MEM_LIMIT, "Simulate memory shortage when compiled with the --with-debug=full option.", 0, 0, 0, GET_ULL, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"secure-auth", OPT_SECURE_AUTH, "Disallow authentication for accounts that have old (pre-4.1) passwords.", &opt_secure_auth, &opt_secure_auth, 0, GET_BOOL, NO_ARG, my_bool(0), 0, 0, 0, 0, 0}, {"secure-file-priv", OPT_SECURE_FILE_PRIV, "Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to files within specified directory.", &opt_secure_file_priv, &opt_secure_file_priv, 0, GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"server-id", OPT_SERVER_ID, "Uniquely identifies the server instance in the community of replication partners.", &server_id, &server_id, 0, GET_ULONG, REQUIRED_ARG, 0, 0, UINT_MAX32, 0, 0, 0}, {"set-variable", 'O', "Change the value of a variable. Please note that this option is deprecated; " "you can set variables directly with --variable-name=value.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_SMEM {"shared-memory", OPT_ENABLE_SHARED_MEMORY, "Enable the shared memory.",&opt_enable_shared_memory, &opt_enable_shared_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"shared-memory-base-name",OPT_SHARED_MEMORY_BASE_NAME, "Base name of shared memory.", &shared_memory_base_name, &shared_memory_base_name, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #endif {"show-slave-auth-info", OPT_SHOW_SLAVE_AUTH_INFO, "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}, {"skip-bdb", OPT_DEPRECATED_OPTION, "Deprecated option; Exist only for compatiblity with old my.cnf files", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifndef DISABLE_GRANT_OPTIONS {"skip-grant-tables", OPT_SKIP_GRANT, "Start without grant tables. This gives all users FULL ACCESS to all tables.", &opt_noacl, &opt_noacl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, #endif {"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-locking", OPT_SKIP_LOCK, "Deprecated option, use --skip-external-locking instead.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"skip-name-resolve", OPT_SKIP_RESOLVE, "Don't resolve hostnames. All hostnames are IP's or 'localhost'.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"skip-networking", OPT_SKIP_NETWORKING, "Don't allow connection with TCP/IP.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifdef SAFEMALLOC {"safemalloc", OPT_SAFEMALLOC, "Check all memory allocation for every malloc/free call.", &sf_malloc_trough_check, &sf_malloc_trough_check, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0 }, #endif {"skip-show-database", OPT_SKIP_SHOW_DB, "Don't allow 'SHOW DATABASE' commands.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"skip-slave-start", OPT_SKIP_SLAVE_START, "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}, {"skip-symlink", OPT_SKIP_SYMLINKS, "Don't allow symlinking of tables. " "Deprecated option. Use --skip-symbolic-links instead.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"skip-thread-priority", OPT_SKIP_PRIOR, "Don't give threads different priorities. Deprecated option.", 0, 0, 0, GET_NO_ARG, NO_ARG, DEFAULT_SKIP_THREAD_PRIORITY, 0, 0, 0, 0, 0}, #ifdef HAVE_REPLICATION {"slave-load-tmpdir", OPT_SLAVE_LOAD_TMPDIR, "The location where the slave should put its temporary files when " "replicating a LOAD DATA INFILE command.", &slave_load_tmpdir, &slave_load_tmpdir, 0, GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"slave-skip-errors", OPT_SLAVE_SKIP_ERRORS, "Tells the slave thread to continue replication when a query event returns an error from the provided list.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"slave-exec-mode", OPT_SLAVE_EXEC_MODE, "Modes for how replication events should be executed. Legal values are " "STRICT (default) and IDEMPOTENT. In IDEMPOTENT mode, replication will " "not stop for operations that are idempotent. In STRICT mode, replication " "will stop on any unexpected difference between the master and the slave.", &slave_exec_mode_str, &slave_exec_mode_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #endif {"slow-query-log", OPT_SLOW_LOG, "Enable/disable slow query log. See also '--log-slow-queries'", &opt_slow_log, &opt_slow_log, 0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"socket", OPT_SOCKET, "Socket file to use for connection.", &mysqld_unix_port, &mysqld_unix_port, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_REPLICATION {"sporadic-binlog-dump-fail", OPT_SPORADIC_BINLOG_DUMP_FAIL, "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 */ {"sql-bin-update-same", OPT_SQL_BIN_UPDATE_SAME, "The update log is deprecated since version 5.0, is replaced by the " "binary log and this option does nothing anymore.", 0, 0, 0, GET_DISABLED, NO_ARG, 0, 0, 0, 0, 0, 0}, {"sql-mode", OPT_SQL_MODE, "Syntax: sql-mode=option[,option[,option...]] where option can be one " "of: REAL_AS_FLOAT, PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, " "ONLY_FULL_GROUP_BY, NO_UNSIGNED_SUBTRACTION.", &sql_mode_str, &sql_mode_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #ifdef HAVE_OPENSSL #include "sslopt-longopts.h" #endif #ifdef __WIN__ {"standalone", OPT_STANDALONE, "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. */ IF_VALGRIND(0,1), 0, 0, 0, 0, 0}, {"sysdate-is-now", OPT_SYSDATE_IS_NOW, "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", OPT_TC_HEURISTIC_RECOVER, "Decision to use in heuristic recover process. Possible values are COMMIT " "or ROLLBACK.", &opt_tc_heuristic_recover, &opt_tc_heuristic_recover, 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) */ {"temp-pool", OPT_TEMP_POOL, #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.", #else "This option is ignored on this OS.", #endif &use_temp_pool, &use_temp_pool, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, {"test-ignore-wrong-options", OPT_TEST_IGNORE_WRONG_OPTIONS, "Ignore wrong enums values in command line arguments. Useful only for test scripts", &opt_ignore_wrong_options, &opt_ignore_wrong_options, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"test-expect-abort", OPT_TEST_RESTART, "Expect that server aborts with 'abort'; Don't write out server variables on 'abort'. Useful only for test scripts", &opt_expect_abort, &opt_expect_abort, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"timed_mutexes", OPT_TIMED_MUTEXES, "Specify whether to time mutexes (only InnoDB mutexes are currently supported).", &timed_mutexes, &timed_mutexes, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"tmpdir", 't', "Path for temporary files. Several paths may be specified, separated by a " #if defined(__WIN__) || defined(__NETWARE__) "semicolon (;)" #else "colon (:)" #endif ", in this case they are used in a round-robin fashion.", &opt_mysql_tmpdir, &opt_mysql_tmpdir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"transaction-isolation", OPT_TX_ISOLATION, "Default transaction isolation level.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"use-symbolic-links", OPT_SYMBOLIC_LINKS, "Enable symbolic link support. " "Deprecated option; use --symbolic-links instead.", &my_use_symdir, &my_use_symdir, 0, GET_BOOL, NO_ARG, IF_VALGRIND(0,1), 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_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"warnings", OPT_WARNINGS, "Deprecated; use --log-warnings instead.", &global_system_variables.log_warnings, &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG, 1, 0, ULONG_MAX, 0, 0, 0}, {"back_log", OPT_BACK_LOG, "The number of outstanding connection requests MySQL can have. This " "comes into play when the main MySQL thread gets very many connection " "requests in a very short time.", &back_log, &back_log, 0, GET_ULONG, REQUIRED_ARG, 50, 1, 65535, 0, 1, 0 }, {"binlog_cache_size", OPT_BINLOG_CACHE_SIZE, "The size of the cache to hold the SQL statements for the binary log " "during a transaction. If you often use big, multi-statement " "transactions you can increase this to get more performance.", &binlog_cache_size, &binlog_cache_size, 0, GET_ULONG, REQUIRED_ARG, 32*1024L, IO_SIZE, (longlong) ULONG_MAX, 0, IO_SIZE, 0}, {"bulk_insert_buffer_size", OPT_BULK_INSERT_BUFFER_SIZE, "Size of tree cache used in bulk insert optimization. Note that this " "is a limit per thread.", &global_system_variables.bulk_insert_buff_size, &max_system_variables.bulk_insert_buff_size, 0, GET_ULONG, REQUIRED_ARG, 8192*1024, 0, (longlong) ULONG_MAX, 0, 1, 0}, {"connect_timeout", OPT_CONNECT_TIMEOUT, "The number of seconds the mysqld server is waiting for a connect packet " "before responding with 'Bad handshake'.", &connect_timeout, &connect_timeout, 0, GET_ULONG, REQUIRED_ARG, CONNECT_TIMEOUT, 2, LONG_TIMEOUT, 0, 1, 0 }, { "date_format", OPT_DATE_FORMAT, "The DATE format (for future).", &opt_date_time_formats[MYSQL_TIMESTAMP_DATE], &opt_date_time_formats[MYSQL_TIMESTAMP_DATE], 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, { "datetime_format", OPT_DATETIME_FORMAT, "The DATETIME/TIMESTAMP format (for future).", &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME], &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME], 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, { "default_week_format", OPT_DEFAULT_WEEK_FORMAT, "The default week format used by WEEK() functions.", &global_system_variables.default_week_format, &max_system_variables.default_week_format, 0, GET_ULONG, REQUIRED_ARG, 0, 0, 7L, 0, 1, 0}, {"delayed_insert_limit", OPT_DELAYED_INSERT_LIMIT, "After inserting delayed_insert_limit rows, the INSERT DELAYED handler " "will check if there are any SELECT statements pending. If so, it allows " "these to execute before continuing.", &delayed_insert_limit, &delayed_insert_limit, 0, GET_ULONG, REQUIRED_ARG, DELAYED_LIMIT, 1, (longlong) ULONG_MAX, 0, 1, 0}, {"delayed_insert_timeout", OPT_DELAYED_INSERT_TIMEOUT, "How long a INSERT DELAYED thread should wait for INSERT statements before terminating.", &delayed_insert_timeout, &delayed_insert_timeout, 0, GET_ULONG, REQUIRED_ARG, DELAYED_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0}, { "delayed_queue_size", OPT_DELAYED_QUEUE_SIZE, "What size queue (in rows) should be allocated for handling INSERT DELAYED. " "If the queue becomes full, any client that does INSERT DELAYED will wait " "until there is room in the queue again.", &delayed_queue_size, &delayed_queue_size, 0, GET_ULONG, REQUIRED_ARG, DELAYED_QUEUE_SIZE, 1, (longlong) ULONG_MAX, 0, 1, 0}, {"div_precision_increment", OPT_DIV_PRECINCREMENT, "Precision of the result of '/' operator will be increased on that value.", &global_system_variables.div_precincrement, &max_system_variables.div_precincrement, 0, GET_ULONG, REQUIRED_ARG, 4, 0, DECIMAL_MAX_SCALE, 0, 0, 0}, {"expire_logs_days", OPT_EXPIRE_LOGS_DAYS, "If non-zero, binary logs will be purged after expire_logs_days " "days; possible purges happen at startup and at binary log rotation.", &expire_logs_days, &expire_logs_days, 0, GET_ULONG, REQUIRED_ARG, 0, 0, 99, 0, 1, 0}, { "flush_time", OPT_FLUSH_TIME, "A dedicated thread is created to flush all tables at the given interval.", &flush_time, &flush_time, 0, GET_ULONG, REQUIRED_ARG, FLUSH_TIME, 0, LONG_TIMEOUT, 0, 1, 0}, { "ft_boolean_syntax", OPT_FT_BOOLEAN_SYNTAX, "List of operators for MATCH ... AGAINST ( ... IN BOOLEAN MODE).", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, { "ft_max_word_len", OPT_FT_MAX_WORD_LEN, "The maximum length of the word to be included in a FULLTEXT index. " "Note: FULLTEXT indexes must be rebuilt after changing this variable.", &ft_max_word_len, &ft_max_word_len, 0, GET_ULONG, REQUIRED_ARG, HA_FT_MAXCHARLEN, 10, HA_FT_MAXCHARLEN, 0, 1, 0}, { "ft_min_word_len", OPT_FT_MIN_WORD_LEN, "The minimum length of the word to be included in a FULLTEXT index. " "Note: FULLTEXT indexes must be rebuilt after changing this variable.", &ft_min_word_len, &ft_min_word_len, 0, GET_ULONG, REQUIRED_ARG, 4, 1, HA_FT_MAXCHARLEN, 0, 1, 0}, { "ft_query_expansion_limit", OPT_FT_QUERY_EXPANSION_LIMIT, "Number of best matches to use for query expansion.", &ft_query_expansion_limit, &ft_query_expansion_limit, 0, GET_ULONG, REQUIRED_ARG, 20, 0, 1000, 0, 1, 0}, { "ft_stopword_file", OPT_FT_STOPWORD_FILE, "Use stopwords from this file instead of built-in list.", &ft_stopword_file, &ft_stopword_file, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, { "group_concat_max_len", OPT_GROUP_CONCAT_MAX_LEN, "The maximum length of the result of function group_concat.", &global_system_variables.group_concat_max_len, &max_system_variables.group_concat_max_len, 0, GET_ULONG, REQUIRED_ARG, 1024, 4, (longlong) ULONG_MAX, 0, 1, 0}, {"interactive_timeout", OPT_INTERACTIVE_TIMEOUT, "The number of seconds the server waits for activity on an interactive " "connection before closing it.", &global_system_variables.net_interactive_timeout, &max_system_variables.net_interactive_timeout, 0, GET_ULONG, REQUIRED_ARG, NET_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0}, {"join_buffer_size", OPT_JOIN_BUFF_SIZE, "The size of the buffer that is used for full joins.", &global_system_variables.join_buff_size, &max_system_variables.join_buff_size, 0, GET_ULONG, REQUIRED_ARG, 128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, (longlong) ULONG_MAX, MALLOC_OVERHEAD, IO_SIZE, 0}, {"keep_files_on_create", OPT_KEEP_FILES_ON_CREATE, "Don't overwrite stale .MYD and .MYI even if no directory is specified.", &global_system_variables.keep_files_on_create, &max_system_variables.keep_files_on_create, 0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"key_buffer_size", OPT_KEY_BUFFER_SIZE, "The size of the buffer used for index blocks for MyISAM tables. Increase " "this to get better index handling (for all reads and multiple writes) to " "as much as you can afford; 1GB on a 4GB machine that mainly runs MySQL is " "quite common.", &dflt_key_cache_var.param_buff_size, NULL, NULL, (GET_ULL | GET_ASK_ADDR), REQUIRED_ARG, KEY_CACHE_SIZE, 0, SIZE_T_MAX, MALLOC_OVERHEAD, IO_SIZE, 0}, {"key_cache_age_threshold", OPT_KEY_CACHE_AGE_THRESHOLD, "This characterizes the number of hits a hot block has to be untouched " "until it is considered aged enough to be downgraded to a warm block. " "This specifies the percentage ratio of that number of hits to the total " "number of blocks in key cache.", &dflt_key_cache_var.param_age_threshold, 0, 0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG, 300, 100, (longlong) ULONG_MAX, 0, 100, 0}, {"key_cache_block_size", OPT_KEY_CACHE_BLOCK_SIZE, "The default size of key cache blocks.", &dflt_key_cache_var.param_block_size, NULL, NULL, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG, KEY_CACHE_BLOCK_SIZE, 512, 1024 * 16, 0, 512, 0}, {"key_cache_division_limit", OPT_KEY_CACHE_DIVISION_LIMIT, "The minimum percentage of warm blocks in key cache.", &dflt_key_cache_var.param_division_limit, 0, 0, (GET_ULONG | GET_ASK_ADDR) , REQUIRED_ARG, 100, 1, 100, 0, 1, 0}, {"key_cache_segments", OPT_KEY_CACHE_PARTITIONS, "The number of segments in a key cache", &dflt_key_cache_var.param_partitions, 0, 0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG, DEFAULT_KEY_CACHE_PARTITIONS, 0, MAX_KEY_CACHE_PARTITIONS, 0, 1, 0}, {"log-slow-filter", OPT_LOG_SLOW_FILTER, "Log only the queries that followed certain execution plan. Multiple flags " "allowed in a comma-separated string. [admin, filesort, filesort_on_disk, " "full_join, full_scan, query_cache, query_cache_miss, tmp_table, " "tmp_table_on_disk]. Sets log-slow-admin-command to ON", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, QPLAN_ALWAYS_SET, 0, 0}, {"log-slow-rate_limit", OPT_LOG_SLOW_RATE_LIMIT, "If set, only write to slow log every 'log_slow_rate_limit' query (use " "this to reduce output on slow query log)", &global_system_variables.log_slow_rate_limit, &max_system_variables.log_slow_rate_limit, 0, GET_ULONG, REQUIRED_ARG, 1, 1, ~0L, 0, 1L, 0}, {"log-slow-verbosity", OPT_LOG_SLOW_VERBOSITY, "Choose how verbose the messages to your slow log will be. Multiple flags " "allowed in a comma-separated string. [query_plan, innodb]", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, {"log-slow-time", OPT_LONG_QUERY_TIME, "Log all queries that have taken more than log-slow-time seconds to " "execute to file. The argument will be treated as a decimal value with " "microsecond precission. Same as --log-query-time.", &long_query_time, &long_query_time, 0, GET_DOUBLE, REQUIRED_ARG, 10, 0, LONG_TIMEOUT, 0, 0, 0}, {"long_query_time", OPT_LONG_QUERY_TIME, "Log all queries that have taken more than long-query-time seconds to " "execute to file. The argument will be treated as a decimal value with " "microsecond precission. Same as --log-slow-time.", &long_query_time, &long_query_time, 0, GET_DOUBLE, REQUIRED_ARG, 10, 0, LONG_TIMEOUT, 0, 0, 0}, {"lower_case_table_names", OPT_LOWER_CASE_TABLE_NAMES, "If set to 1, table names are stored in lowercase on disk and table names " "will be case-insensitive. Should be set to 2 if you are using a case-" "insensitive file system.", &lower_case_table_names, &lower_case_table_names, 0, GET_UINT, OPT_ARG, #ifdef FN_NO_CASE_SENCE 1 #else 0 #endif , 0, 2, 0, 1, 0}, {"max_allowed_packet", OPT_MAX_ALLOWED_PACKET, "The maximum packet length to send to or receive from server.", &global_system_variables.max_allowed_packet, &max_system_variables.max_allowed_packet, 0, GET_ULONG, REQUIRED_ARG, 1024*1024L, 1024, 1024L*1024L*1024L, MALLOC_OVERHEAD, 1024, 0}, {"max_binlog_cache_size", OPT_MAX_BINLOG_CACHE_SIZE, "Can be used to restrict the total size used to cache a multi-transaction query.", &max_binlog_cache_size, &max_binlog_cache_size, 0, GET_ULL, REQUIRED_ARG, ULONG_MAX, IO_SIZE, ULONGLONG_MAX, 0, IO_SIZE, 0}, {"max_binlog_size", OPT_MAX_BINLOG_SIZE, "Binary log will be rotated automatically when the size exceeds this " "value. Will also apply to relay logs if max_relay_log_size is 0. " "The minimum value for this variable is 4096.", &max_binlog_size, &max_binlog_size, 0, GET_ULONG, REQUIRED_ARG, 1024*1024L*1024L, IO_SIZE, 1024*1024L*1024L, 0, IO_SIZE, 0}, {"max_connect_errors", OPT_MAX_CONNECT_ERRORS, "If there is more than this number of interrupted connections from a host " "this host will be blocked from further connections.", &max_connect_errors, &max_connect_errors, 0, GET_ULONG, REQUIRED_ARG, MAX_CONNECT_ERRORS, 1, (longlong) ULONG_MAX, 0, 1, 0}, // Default max_connections of 151 is larger than Apache's default max // children, to avoid "too many connections" error in a common setup {"max_connections", OPT_MAX_CONNECTIONS, "The number of simultaneous clients allowed.", &max_connections, &max_connections, 0, GET_ULONG, REQUIRED_ARG, 151, 1, 100000, 0, 1, 0}, {"max_delayed_threads", OPT_MAX_DELAYED_THREADS, "Don't start more than this number of threads to handle INSERT DELAYED " "statements. If set to zero, which means INSERT DELAYED is not used.", &global_system_variables.max_insert_delayed_threads, &max_system_variables.max_insert_delayed_threads, 0, GET_ULONG, REQUIRED_ARG, 20, 0, 16384, 0, 1, 0}, {"max_error_count", OPT_MAX_ERROR_COUNT, "Max number of errors/warnings to store for a statement.", &global_system_variables.max_error_count, &max_system_variables.max_error_count, 0, GET_ULONG, REQUIRED_ARG, DEFAULT_ERROR_COUNT, 0, 65535, 0, 1, 0}, {"max_heap_table_size", OPT_MAX_HEP_TABLE_SIZE, "Don't allow creation of heap tables bigger than this.", &global_system_variables.max_heap_table_size, &max_system_variables.max_heap_table_size, 0, GET_ULL, REQUIRED_ARG, 16*1024*1024L, 16384, MAX_MEM_TABLE_SIZE, MALLOC_OVERHEAD, 1024, 0}, {"max_join_size", OPT_MAX_JOIN_SIZE, "Joins that are probably going to read more than max_join_size records return an error.", &global_system_variables.max_join_size, &max_system_variables.max_join_size, 0, GET_HA_ROWS, REQUIRED_ARG, HA_POS_ERROR, 1, HA_POS_ERROR, 0, 1, 0}, {"max_length_for_sort_data", OPT_MAX_LENGTH_FOR_SORT_DATA, "Max number of bytes in sorted records.", &global_system_variables.max_length_for_sort_data, &max_system_variables.max_length_for_sort_data, 0, GET_ULONG, REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0}, {"max_long_data_size", OPT_MAX_LONG_DATA_SIZE, "The maximum size of prepared statement parameter which can be provided " "through mysql_send_long_data() API call. To be used when limit of " "max_allowed_packet is too small", &max_long_data_size, &max_long_data_size, 0, GET_ULONG, REQUIRED_ARG, 1024*1024L, 1024, UINT_MAX32, MALLOC_OVERHEAD, 1, 0}, {"max_prepared_stmt_count", OPT_MAX_PREPARED_STMT_COUNT, "Maximum number of prepared statements in the server.", &max_prepared_stmt_count, &max_prepared_stmt_count, 0, GET_ULONG, REQUIRED_ARG, 16382, 0, 1*1024*1024, 0, 1, 0}, {"max_relay_log_size", OPT_MAX_RELAY_LOG_SIZE, "If non-zero: relay log will be rotated automatically when the size " "exceeds this value; if zero (the default): when the size exceeds " "max_binlog_size. 0 excepted, the minimum value for this variable is 4096.", &max_relay_log_size, &max_relay_log_size, 0, GET_ULONG, REQUIRED_ARG, 0L, 0L, 1024*1024L*1024L, 0, IO_SIZE, 0}, { "max_seeks_for_key", OPT_MAX_SEEKS_FOR_KEY, "Limit assumed max number of seeks when looking up rows based on a key.", &global_system_variables.max_seeks_for_key, &max_system_variables.max_seeks_for_key, 0, GET_ULONG, REQUIRED_ARG, (longlong) ULONG_MAX, 1, (longlong) ULONG_MAX, 0, 1, 0 }, {"max_sort_length", OPT_MAX_SORT_LENGTH, "The number of bytes to use when sorting BLOB or TEXT values (only the " "first max_sort_length bytes of each value are used; the rest are ignored).", &global_system_variables.max_sort_length, &max_system_variables.max_sort_length, 0, GET_ULONG, REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0}, {"max_sp_recursion_depth", OPT_MAX_SP_RECURSION_DEPTH, "Maximum stored procedure recursion depth. (discussed with docs).", &global_system_variables.max_sp_recursion_depth, &max_system_variables.max_sp_recursion_depth, 0, GET_ULONG, OPT_ARG, 0, 0, 255, 0, 1, 0 }, {"max_tmp_tables", OPT_MAX_TMP_TABLES, "Maximum number of temporary tables a client can keep open at a time.", &global_system_variables.max_tmp_tables, &max_system_variables.max_tmp_tables, 0, GET_ULONG, REQUIRED_ARG, 32, 1, (longlong) ULONG_MAX, 0, 1, 0}, {"max_user_connections", OPT_MAX_USER_CONNECTIONS, "The maximum number of active connections for a single user (0 = no limit).", &max_user_connections, &max_user_connections, 0, GET_UINT, REQUIRED_ARG, 0, 0, UINT_MAX, 0, 1, 0}, {"max_write_lock_count", OPT_MAX_WRITE_LOCK_COUNT, "After this many write locks, allow some read locks to run in between.", &max_write_lock_count, &max_write_lock_count, 0, GET_ULONG, REQUIRED_ARG, (longlong) ULONG_MAX, 1, (longlong) ULONG_MAX, 0, 1, 0}, {"min_examined_row_limit", OPT_MIN_EXAMINED_ROW_LIMIT, "Don't log queries which examine less than min_examined_row_limit rows to file.", &global_system_variables.min_examined_row_limit, &max_system_variables.min_examined_row_limit, 0, GET_ULONG, REQUIRED_ARG, 0, 0, (longlong) ULONG_MAX, 0, 1L, 0}, {"multi_range_count", OPT_MULTI_RANGE_COUNT, "Number of key ranges to request at once.", &global_system_variables.multi_range_count, &max_system_variables.multi_range_count, 0, GET_ULONG, REQUIRED_ARG, 256, 1, (longlong) ULONG_MAX, 0, 1, 0}, {"myisam_block_size", OPT_MYISAM_BLOCK_SIZE, "Block size to be used for MyISAM index pages.", &opt_myisam_block_size, &opt_myisam_block_size, 0, GET_ULONG, REQUIRED_ARG, MI_KEY_BLOCK_LENGTH, MI_MIN_KEY_BLOCK_LENGTH, MI_MAX_KEY_BLOCK_LENGTH, 0, MI_MIN_KEY_BLOCK_LENGTH, 0}, {"myisam_data_pointer_size", OPT_MYISAM_DATA_POINTER_SIZE, "Default pointer size to be used for MyISAM tables.", &myisam_data_pointer_size, &myisam_data_pointer_size, 0, GET_ULONG, REQUIRED_ARG, 6, 2, 7, 0, 1, 0}, {"myisam_max_extra_sort_file_size", OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE, "This is a deprecated option that does nothing anymore. " "It will be removed in MySQL " VER_CELOSIA, &global_system_variables.myisam_max_extra_sort_file_size, &max_system_variables.myisam_max_extra_sort_file_size, 0, GET_ULL, REQUIRED_ARG, (ulonglong) INT_MAX32, 0, (ulonglong) MAX_FILE_SIZE, 0, 1, 0}, {"myisam_max_sort_file_size", OPT_MYISAM_MAX_SORT_FILE_SIZE, "Don't use the fast sort index method to created index if the temporary " "file would get bigger than this.", &global_system_variables.myisam_max_sort_file_size, &max_system_variables.myisam_max_sort_file_size, 0, GET_ULL, REQUIRED_ARG, (longlong) LONG_MAX, 0, (ulonglong) MAX_FILE_SIZE, 0, 1024*1024, 0}, {"myisam_mmap_size", OPT_MYISAM_MMAP_SIZE, "Can be used to restrict the total memory used for memory mmaping of myisam files", &myisam_mmap_size, &myisam_mmap_size, 0, GET_ULL, REQUIRED_ARG, SIZE_T_MAX, MEMMAP_EXTRA_MARGIN, SIZE_T_MAX, 0, 1, 0}, {"myisam_repair_threads", OPT_MYISAM_REPAIR_THREADS, "Specifies whether several threads should be used when repairing MyISAM " "tables. For values > 1, one thread is used per index. The value of 1 " "disables parallel repair.", &global_system_variables.myisam_repair_threads, &max_system_variables.myisam_repair_threads, 0, GET_ULONG, REQUIRED_ARG, 1, 1, (longlong) ULONG_MAX, 0, 1, 0}, {"myisam_sort_buffer_size", OPT_MYISAM_SORT_BUFFER_SIZE, "The buffer that is allocated when sorting the index when doing a REPAIR " "or when creating indexes with CREATE INDEX or ALTER TABLE.", &global_system_variables.myisam_sort_buff_size, &max_system_variables.myisam_sort_buff_size, 0, GET_ULONG, REQUIRED_ARG, 8192 * 1024, 4096, (longlong) ULONG_MAX, 0, 1, 0}, {"myisam_use_mmap", OPT_MYISAM_USE_MMAP, "Use memory mapping for reading and writing MyISAM tables.", &opt_myisam_use_mmap, &opt_myisam_use_mmap, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"myisam_stats_method", OPT_MYISAM_STATS_METHOD, "Specifies how MyISAM index statistics collection code should threat NULLs. " "Possible values of name are \"nulls_unequal\" (default behavior for 4.1/5.0), " "\"nulls_equal\" (emulate 4.0 behavior), and \"nulls_ignored\".", &myisam_stats_method_str, &myisam_stats_method_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"net_buffer_length", OPT_NET_BUFFER_LENGTH, "Buffer length for TCP/IP and socket communication.", &global_system_variables.net_buffer_length, &max_system_variables.net_buffer_length, 0, GET_ULONG, REQUIRED_ARG, 16384, 1024, 1024*1024L, 0, 1024, 0}, {"net_read_timeout", OPT_NET_READ_TIMEOUT, "Number of seconds to wait for more data from a connection before aborting the read.", &global_system_variables.net_read_timeout, &max_system_variables.net_read_timeout, 0, GET_ULONG, REQUIRED_ARG, NET_READ_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0}, {"net_retry_count", OPT_NET_RETRY_COUNT, "If a read on a communication port is interrupted, retry this many times before giving up.", &global_system_variables.net_retry_count, &max_system_variables.net_retry_count,0, GET_ULONG, REQUIRED_ARG, MYSQLD_NET_RETRY_COUNT, 1, (longlong) ULONG_MAX, 0, 1, 0}, {"net_write_timeout", OPT_NET_WRITE_TIMEOUT, "Number of seconds to wait for a block to be written to a connection before " "aborting the write.", &global_system_variables.net_write_timeout, &max_system_variables.net_write_timeout, 0, GET_ULONG, REQUIRED_ARG, NET_WRITE_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0}, { "old", OPT_OLD_MODE, "Use compatible behavior.", &global_system_variables.old_mode, &max_system_variables.old_mode, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"open_files_limit", OPT_OPEN_FILES_LIMIT, "If this is not 0, then mysqld will use this value to reserve file " "descriptors to use with setrlimit(). If this value is 0 then mysqld " "will reserve max_connections*5 or max_connections + table_cache*2 " "(whichever is larger) number of files.", &open_files_limit, &open_files_limit, 0, GET_ULONG, REQUIRED_ARG, 0, 0, OS_FILE_LIMIT, 0, 1, 0}, {"optimizer_prune_level", OPT_OPTIMIZER_PRUNE_LEVEL, "Controls the heuristic(s) applied during query optimization to prune " "less-promising partial plans from the optimizer search space. Meaning: " "0 - do not apply any heuristic, thus perform exhaustive search; 1 - " "prune plans based on number of retrieved rows.", &global_system_variables.optimizer_prune_level, &max_system_variables.optimizer_prune_level, 0, GET_ULONG, OPT_ARG, 1, 0, 1, 0, 1, 0}, {"optimizer_search_depth", OPT_OPTIMIZER_SEARCH_DEPTH, "Maximum depth of search performed by the query optimizer. Values larger " "than the number of relations in a query result in better query plans, " "but take longer to compile a query. Smaller values than the number of " "tables in a relation result in faster optimization, but may produce " "very bad query plans. If set to 0, the system will automatically pick " "a reasonable value; if set to MAX_TABLES+2, the optimizer will switch " "to the original find_best (used for testing/comparison).", &global_system_variables.optimizer_search_depth, &max_system_variables.optimizer_search_depth, 0, GET_ULONG, OPT_ARG, MAX_TABLES+1, 0, MAX_TABLES+2, 0, 1, 0}, {"optimizer_switch", OPT_OPTIMIZER_SWITCH, "optimizer_switch=option=val[,option=val...], where option={index_merge, " "index_merge_union, index_merge_sort_union, index_merge_intersection" #ifndef DBUG_OFF ", table_elimination" #endif "} and val={on, off, default}.", &optimizer_switch_str, &optimizer_switch_str, 0, GET_STR, REQUIRED_ARG, /*OPTIMIZER_SWITCH_DEFAULT*/0, 0, 0, 0, 0, 0}, {"plugin_dir", OPT_PLUGIN_DIR, "Directory for plugins.", &opt_plugin_dir_ptr, &opt_plugin_dir_ptr, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"plugin-load", OPT_PLUGIN_LOAD, "Optional semicolon-separated list of plugins to load, where each plugin is " "identified as name=library, where name is the plugin name and library " "is the plugin library in plugin_dir.", &opt_plugin_load, &opt_plugin_load, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"plugin-maturity", OPT_PLUGIN_MATURITY, "The lowest desirable plugin maturity. Plugins less mature than that will not be installed or loaded.", (uchar**) &plugin_maturity, (uchar**) &plugin_maturity, &plugin_maturity_values, GET_ENUM, REQUIRED_ARG, server_maturity, 0, 0, 0, 0, 0}, {"preload_buffer_size", OPT_PRELOAD_BUFFER_SIZE, "The size of the buffer that is allocated when preloading indexes.", &global_system_variables.preload_buff_size, &max_system_variables.preload_buff_size, 0, GET_ULONG, REQUIRED_ARG, 32*1024L, 1024, 1024*1024*1024L, 0, 1, 0}, {"query_alloc_block_size", OPT_QUERY_ALLOC_BLOCK_SIZE, "Allocation block size for query parsing and execution.", &global_system_variables.query_alloc_block_size, &max_system_variables.query_alloc_block_size, 0, GET_ULONG, REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, (longlong) ULONG_MAX, 0, 1024, 0}, #ifdef HAVE_QUERY_CACHE {"query_cache_limit", OPT_QUERY_CACHE_LIMIT, "Don't cache results that are bigger than this.", &query_cache_limit, &query_cache_limit, 0, GET_ULONG, REQUIRED_ARG, 1024*1024L, 0, (longlong) ULONG_MAX, 0, 1, 0}, {"query_cache_min_res_unit", OPT_QUERY_CACHE_MIN_RES_UNIT, "Minimal size of unit in which space for results is allocated (last unit " "will be trimmed after writing all result data).", &query_cache_min_res_unit, &query_cache_min_res_unit, 0, GET_ULONG, REQUIRED_ARG, QUERY_CACHE_MIN_RESULT_DATA_SIZE, 0, (longlong) ULONG_MAX, 0, 1, 0}, #endif /*HAVE_QUERY_CACHE*/ {"query_cache_size", OPT_QUERY_CACHE_SIZE, "The memory allocated to store results from old queries.", &query_cache_size, &query_cache_size, 0, GET_ULONG, REQUIRED_ARG, 0, 0, (longlong) ULONG_MAX, 0, 1024, 0}, #ifdef HAVE_QUERY_CACHE {"query_cache_type", OPT_QUERY_CACHE_TYPE, "0 = OFF = Don't cache or retrieve results. 1 = ON = Cache all results " "except SELECT SQL_NO_CACHE ... queries. 2 = DEMAND = Cache only SELECT " "SQL_CACHE ... queries.", &global_system_variables.query_cache_type, &max_system_variables.query_cache_type, 0, GET_ULONG, REQUIRED_ARG, 1, 0, 2, 0, 1, 0}, {"query_cache_wlock_invalidate", OPT_QUERY_CACHE_WLOCK_INVALIDATE, "Invalidate queries in query cache on LOCK for write.", &global_system_variables.query_cache_wlock_invalidate, &max_system_variables.query_cache_wlock_invalidate, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0}, #endif /*HAVE_QUERY_CACHE*/ {"query_prealloc_size", OPT_QUERY_PREALLOC_SIZE, "Persistent buffer for query parsing and execution.", &global_system_variables.query_prealloc_size, &max_system_variables.query_prealloc_size, 0, GET_ULONG, REQUIRED_ARG, QUERY_ALLOC_PREALLOC_SIZE, QUERY_ALLOC_PREALLOC_SIZE, (longlong) ULONG_MAX, 0, 1024, 0}, {"range_alloc_block_size", OPT_RANGE_ALLOC_BLOCK_SIZE, "Allocation block size for storing ranges during optimization.", &global_system_variables.range_alloc_block_size, &max_system_variables.range_alloc_block_size, 0, GET_ULONG, REQUIRED_ARG, RANGE_ALLOC_BLOCK_SIZE, RANGE_ALLOC_BLOCK_SIZE, (longlong) ULONG_MAX, 0, 1024, 0}, {"read_buffer_size", OPT_RECORD_BUFFER, "Each thread that does a sequential scan allocates a buffer of this size " "for each table it scans. If you do many sequential scans, you may want " "to increase this value.", &global_system_variables.read_buff_size, &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG, 128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, INT_MAX32, MALLOC_OVERHEAD, IO_SIZE, 0}, {"read_only", OPT_READONLY, "Make all non-temporary tables read-only, with the exception of replication " "(slave) threads and users with the SUPER privilege.", &opt_readonly, &opt_readonly, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0}, {"read_rnd_buffer_size", OPT_RECORD_RND_BUFFER, "When reading rows in sorted order after a sort, the rows are read through " "this buffer to avoid disk seeks. If not set, then it's set to the value of " "record_buffer.", &global_system_variables.read_rnd_buff_size, &max_system_variables.read_rnd_buff_size, 0, GET_ULONG, REQUIRED_ARG, 256*1024L, IO_SIZE*2+MALLOC_OVERHEAD, INT_MAX32, MALLOC_OVERHEAD, IO_SIZE, 0}, {"record_buffer", OPT_RECORD_BUFFER_OLD, "Alias for read_buffer_size. This variable is deprecated and will be removed in a future release.", &global_system_variables.read_buff_size, &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG, 128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, INT_MAX32, MALLOC_OVERHEAD, IO_SIZE, 0}, #ifdef HAVE_REPLICATION {"relay_log_purge", OPT_RELAY_LOG_PURGE, "0 = do not purge relay logs. 1 = purge them as soon as they are no more needed.", &relay_log_purge, &relay_log_purge, 0, GET_BOOL, NO_ARG, 1, 0, 1, 0, 1, 0}, {"relay_log_space_limit", OPT_RELAY_LOG_SPACE_LIMIT, "Maximum space to use for all relay logs.", &relay_log_space_limit, &relay_log_space_limit, 0, GET_ULL, REQUIRED_ARG, 0L, 0L, (longlong) ULONG_MAX, 0, 1, 0}, {"slave_compressed_protocol", OPT_SLAVE_COMPRESSED_PROTOCOL, "Use compression on master/slave protocol.", &opt_slave_compressed_protocol, &opt_slave_compressed_protocol, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0}, {"slave_net_timeout", OPT_SLAVE_NET_TIMEOUT, "Number of seconds to wait for more data from a master/slave connection before aborting the read.", &slave_net_timeout, &slave_net_timeout, 0, GET_ULONG, REQUIRED_ARG, SLAVE_NET_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0}, {"slave_transaction_retries", OPT_SLAVE_TRANS_RETRIES, "Number of times the slave SQL thread will retry a transaction in case " "it failed with a deadlock or elapsed lock wait timeout, " "before giving up and stopping.", &slave_trans_retries, &slave_trans_retries, 0, GET_ULONG, REQUIRED_ARG, 10L, 0L, (longlong) ULONG_MAX, 0, 1, 0}, #endif /* HAVE_REPLICATION */ {"slow_launch_time", OPT_SLOW_LAUNCH_TIME, "If creating the thread takes longer than this value (in seconds), " "the Slow_launch_threads counter will be incremented.", &slow_launch_time, &slow_launch_time, 0, GET_ULONG, REQUIRED_ARG, 2L, 0L, LONG_TIMEOUT, 0, 1, 0}, {"sort_buffer_size", OPT_SORT_BUFFER, "Each thread that needs to do a sort allocates a buffer of this size.", &global_system_variables.sortbuff_size, &max_system_variables.sortbuff_size, 0, GET_ULONG, REQUIRED_ARG, MAX_SORT_MEMORY, MIN_SORT_MEMORY+MALLOC_OVERHEAD*2, (longlong) ULONG_MAX, MALLOC_OVERHEAD, 1, 0}, {"sync-binlog", OPT_SYNC_BINLOG, "Synchronously flush binary log to disk after every #th event. " "Use 0 (default) to disable synchronous flushing.", &sync_binlog_period, &sync_binlog_period, 0, GET_ULONG, REQUIRED_ARG, 0, 0, (longlong) ULONG_MAX, 0, 1, 0}, {"sync-frm", OPT_SYNC_FRM, "Sync .frm to disk on create. Enabled by default.", &opt_sync_frm, &opt_sync_frm, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, {"sync-sys", OPT_SYNC, "Enable/disable system sync calls. Should only be turned off when running " "tests or debugging!!", &opt_sync, &opt_sync, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, {"table_cache", OPT_TABLE_OPEN_CACHE, "Deprecated; use --table_open_cache instead.", &table_cache_size, &table_cache_size, 0, GET_ULONG, REQUIRED_ARG, TABLE_OPEN_CACHE_DEFAULT, 1, 512*1024L, 0, 1, 0}, {"table_definition_cache", OPT_TABLE_DEF_CACHE, "The number of cached table definitions.", &table_def_size, &table_def_size, 0, GET_ULONG, REQUIRED_ARG, TABLE_DEF_CACHE_DEFAULT, TABLE_DEF_CACHE_MIN, 512*1024L, 0, 1, 0}, {"table_open_cache", OPT_TABLE_OPEN_CACHE, "The number of cached open tables.", &table_cache_size, &table_cache_size, 0, GET_ULONG, REQUIRED_ARG, TABLE_OPEN_CACHE_DEFAULT, 1, 512*1024L, 0, 1, 0}, {"table_lock_wait_timeout", OPT_TABLE_LOCK_WAIT_TIMEOUT, "Timeout in seconds to wait for a table level lock before returning an " "error. Used only if the connection has active cursors.", &table_lock_wait_timeout, &table_lock_wait_timeout, 0, GET_ULONG, REQUIRED_ARG, 50, 1, 1024 * 1024 * 1024, 0, 1, 0}, {"thread_cache_size", OPT_THREAD_CACHE_SIZE, "How many threads we should keep in a cache for reuse.", &thread_cache_size, &thread_cache_size, 0, GET_ULONG, REQUIRED_ARG, 0, 0, 16384, 0, 1, 0}, {"thread_concurrency", OPT_THREAD_CONCURRENCY, "Permits the application to give the threads system a hint for the " "desired number of threads that should be run at the same time.", &concurrency, &concurrency, 0, GET_ULONG, REQUIRED_ARG, DEFAULT_CONCURRENCY, 1, 512, 0, 1, 0}, #if HAVE_POOL_OF_THREADS == 1 {"thread_pool_size", OPT_THREAD_CACHE_SIZE, "How many threads we should create to handle query requests in case of " "'thread_handling=pool-of-threads'.", &thread_pool_size, &thread_pool_size, 0, GET_ULONG, REQUIRED_ARG, 20, 1, 16384, 0, 1, 0}, #endif {"thread_stack", OPT_THREAD_STACK, "The stack size for each thread.", &my_thread_stack_size, &my_thread_stack_size, 0, GET_ULONG, REQUIRED_ARG,DEFAULT_THREAD_STACK, (sizeof(void*)<=4)?1024L*128L: ((256-16)*1024L), (longlong) ULONG_MAX, 0, 1024, 0}, { "time_format", OPT_TIME_FORMAT, "The TIME format (for future).", &opt_date_time_formats[MYSQL_TIMESTAMP_TIME], &opt_date_time_formats[MYSQL_TIMESTAMP_TIME], 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"tmp_table_size", OPT_TMP_TABLE_SIZE, "If an internal in-memory temporary table exceeds this size, MySQL will " "automatically convert it to an on-disk MyISAM/Aria table.", &global_system_variables.tmp_table_size, &max_system_variables.tmp_table_size, 0, GET_ULL, REQUIRED_ARG, 16*1024*1024L, 1024, MAX_MEM_TABLE_SIZE, 0, 1, 0}, {"transaction_alloc_block_size", OPT_TRANS_ALLOC_BLOCK_SIZE, "Allocation block size for transactions to be stored in binary log.", &global_system_variables.trans_alloc_block_size, &max_system_variables.trans_alloc_block_size, 0, GET_ULONG, REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, (longlong) ULONG_MAX, 0, 1024, 0}, {"transaction_prealloc_size", OPT_TRANS_PREALLOC_SIZE, "Persistent buffer for transactions to be stored in binary log.", &global_system_variables.trans_prealloc_size, &max_system_variables.trans_prealloc_size, 0, GET_ULONG, REQUIRED_ARG, TRANS_ALLOC_PREALLOC_SIZE, 1024, (longlong) ULONG_MAX, 0, 1024, 0}, {"thread_handling", OPT_THREAD_HANDLING, "Define threads usage for handling queries: " "one-thread-per-connection" #if HAVE_POOL_OF_THREADS == 1 ", pool-of-threads " #endif "or no-threads.", &opt_thread_handling, &opt_thread_handling, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"updatable_views_with_limit", OPT_UPDATABLE_VIEWS_WITH_LIMIT, "1 = YES = Don't issue an error message (warning only) if a VIEW without " "presence of a key of the underlying table is used in queries with a " "LIMIT clause for updating. 0 = NO = Prohibit update of a VIEW, which " "does not contain a key of the underlying table and the query uses a " "LIMIT clause (usually get from GUI tools).", &global_system_variables.updatable_views_with_limit, &max_system_variables.updatable_views_with_limit, 0, GET_ULONG, REQUIRED_ARG, 1, 0, 1, 0, 1, 0}, {"wait_timeout", OPT_WAIT_TIMEOUT, "The number of seconds the server waits for activity on a connection before closing it.", &global_system_variables.net_wait_timeout, &max_system_variables.net_wait_timeout, 0, GET_ULONG, REQUIRED_ARG, NET_WAIT_TIMEOUT, 1, IF_WIN(INT_MAX32/1000, LONG_TIMEOUT), 0, 1, 0}, {"userstat", OPT_USERSTAT, "Control USER_STATISTICS, CLIENT_STATISTICS, INDEX_STATISTICS and TABLE_STATISTICS running", (uchar**) &opt_userstat_running, (uchar**) &opt_userstat_running, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0}, {"binlog-direct-non-transactional-updates", OPT_BINLOG_DIRECT_NON_TRANS_UPDATE, "Causes updates to non-transactional engines using statement format to be " "written directly to binary log. Before using this option, make sure that " "there are no dependencies between transactional and non-transactional " "tables such as in the statement INSERT INTO t_myisam SELECT * FROM " "t_innodb; otherwise, slaves may diverge from the master.", &global_system_variables.binlog_direct_non_trans_update, &max_system_variables.binlog_direct_non_trans_update, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0} }; static int show_queries(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONGLONG; var->value= (char *)&thd->query_id; return 0; } static int show_net_compression(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_MY_BOOL; var->value= (char *)&thd->net.compress; return 0; } static int show_starttime(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (long) (thd->query_start() - server_start_time); return 0; } #ifdef COMMUNITY_SERVER static int show_flushstatustime(THD *thd, SHOW_VAR *var, char *buff) { 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) { var->type= SHOW_CHAR; var->value= const_cast(rpl_status_type[(int)rpl_status]); return 0; } static int show_slave_running(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_MY_BOOL; pthread_mutex_lock(&LOCK_active_mi); var->value= buff; *((my_bool *)buff)= (my_bool) (active_mi && active_mi->slave_running == MYSQL_SLAVE_RUN_CONNECT && active_mi->rli.slave_running); pthread_mutex_unlock(&LOCK_active_mi); return 0; } static int show_slave_retried_trans(THD *thd, SHOW_VAR *var, char *buff) { /* TODO: with multimaster, have one such counter per line in SHOW SLAVE STATUS, and have the sum over all lines here. */ pthread_mutex_lock(&LOCK_active_mi); if (active_mi) { var->type= SHOW_LONG; var->value= buff; pthread_mutex_lock(&active_mi->rli.data_lock); *((long *)buff)= (long)active_mi->rli.retried_trans; pthread_mutex_unlock(&active_mi->rli.data_lock); } else var->type= SHOW_UNDEF; pthread_mutex_unlock(&LOCK_active_mi); return 0; } #endif /* HAVE_REPLICATION */ static int show_open_tables(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (long)cached_open_tables(); return 0; } static int show_prepared_stmt_count(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; pthread_mutex_lock(&LOCK_prepared_stmt_count); *((long *)buff)= (long)prepared_stmt_count; pthread_mutex_unlock(&LOCK_prepared_stmt_count); return 0; } static int show_table_definitions(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (long)cached_table_definitions(); return 0; } #ifdef HAVE_OPENSSL /* Functions relying on CTX */ static int show_ssl_ctx_sess_accept(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_accept(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_accept_good(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_accept_good(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_connect_good(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_connect_good(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_accept_renegotiate(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_connect_renegotiate(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_cb_hits(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_cb_hits(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_hits(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_hits(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_cache_full(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_cache_full(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_misses(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_misses(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_timeouts(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_number(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_connect(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_sess_get_cache_size(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; *((long *)buff)= (!ssl_acceptor_fd ? 0 : SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context)); return 0; } static int show_ssl_ctx_get_session_cache_mode(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_CHAR; if (!ssl_acceptor_fd) var->value= const_cast("NONE"); else switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context)) { case SSL_SESS_CACHE_OFF: var->value= const_cast("OFF"); break; case SSL_SESS_CACHE_CLIENT: var->value= const_cast("CLIENT"); break; case SSL_SESS_CACHE_SERVER: var->value= const_cast("SERVER"); break; case SSL_SESS_CACHE_BOTH: var->value= const_cast("BOTH"); break; case SSL_SESS_CACHE_NO_AUTO_CLEAR: var->value= const_cast("NO_AUTO_CLEAR"); break; case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP: var->value= const_cast("NO_INTERNAL_LOOKUP"); break; default: var->value= const_cast("Unknown"); break; } return 0; } /* 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) { var->type= SHOW_CHAR; if( thd->vio_ok() && thd->net.vio->ssl_arg ) var->value= const_cast(SSL_get_version((SSL*) thd->net.vio->ssl_arg)); else var->value= (char *)""; return 0; } static int show_ssl_session_reused(THD *thd, SHOW_VAR *var, char *buff) { var->type= SHOW_LONG; var->value= buff; if( thd->vio_ok() && thd->net.vio->ssl_arg ) *((long *)buff)= (long)SSL_session_reused((SSL*) thd->net.vio->ssl_arg); else *((long *)buff)= 0; return 0; } static int show_ssl_get_default_timeout(THD *thd, SHOW_VAR *var, char *buff) { 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) { var->type= SHOW_LONG; var->value= buff; 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; return 0; } static int show_ssl_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff) { 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) { var->type= SHOW_CHAR; if( thd->vio_ok() && thd->net.vio->ssl_arg ) var->value= const_cast(SSL_get_cipher((SSL*) thd->net.vio->ssl_arg)); else var->value= (char *)""; return 0; } static int show_ssl_get_cipher_list(THD *thd, SHOW_VAR *var, char *buff) { 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; } #endif /* HAVE_OPENSSL */ static int show_default_keycache(THD *thd, SHOW_VAR *var, char *buff) { struct st_data { KEY_CACHE_STATISTICS stats; SHOW_VAR var[8]; } *data; SHOW_VAR *v; data=(st_data *)buff; v= data->var; var->type= SHOW_ARRAY; var->value= (char*)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= (char*)&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) <= buff + SHOW_VAR_FUNC_BUFF_SIZE); #undef set_one_keycache_var 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}, {"Access_denied_errors", (char*) offsetof(STATUS_VAR, access_denied_errors), SHOW_LONG_STATUS}, {"Binlog_cache_disk_use", (char*) &binlog_cache_disk_use, SHOW_LONG}, {"Binlog_cache_use", (char*) &binlog_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}, {"Binlog_bytes_written", (char*) offsetof(STATUS_VAR, binlog_bytes_written), SHOW_LONGLONG_STATUS}, {"Com", (char*) com_status_vars, SHOW_ARRAY}, {"Compression", (char*) &show_net_compression, SHOW_FUNC}, {"Connections", (char*) &thread_id, SHOW_LONG_NOFLUSH}, {"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}, {"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}, {"Empty_queries", (char*) offsetof(STATUS_VAR, empty_queries), SHOW_LONG_STATUS}, {"Flush_commands", (char*) &refresh_version, SHOW_LONG_NOFLUSH}, {"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_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_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_rnd", (char*) offsetof(STATUS_VAR, ha_read_rnd_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_update", (char*) offsetof(STATUS_VAR, ha_update_count), SHOW_LONG_STATUS}, {"Handler_write", (char*) offsetof(STATUS_VAR, ha_write_count), SHOW_LONG_STATUS}, {"Key", (char*) &show_default_keycache, SHOW_FUNC}, {"Last_query_cost", (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS}, {"Max_used_connections", (char*) &max_used_connections, SHOW_LONG}, {"Not_flushed_delayed_rows", (char*) &delayed_rows_in_use, SHOW_LONG_NOFLUSH}, {"Open_files", (char*) &my_file_opened, SHOW_LONG_NOFLUSH}, {"Open_streams", (char*) &my_stream_opened, SHOW_LONG_NOFLUSH}, {"Open_table_definitions", (char*) &show_table_definitions, SHOW_FUNC}, {"Open_tables", (char*) &show_open_tables, SHOW_FUNC}, {"Opened_files", (char*) &my_file_total_opened, SHOW_LONG_NOFLUSH}, {"Opened_tables", (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS}, {"Opened_table_definitions", (char*) offsetof(STATUS_VAR, opened_shares), SHOW_LONG_STATUS}, {"Prepared_stmt_count", (char*) &show_prepared_stmt_count, SHOW_FUNC}, {"Rows_sent", (char*) offsetof(STATUS_VAR, rows_sent), SHOW_LONGLONG_STATUS}, {"Rows_read", (char*) offsetof(STATUS_VAR, rows_read), SHOW_LONGLONG_STATUS}, #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_FUNC}, {"Questions", (char*) offsetof(STATUS_VAR, questions), SHOW_LONG_STATUS}, #ifdef HAVE_REPLICATION {"Rpl_status", (char*) &show_rpl_status, SHOW_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_LONG}, #ifdef HAVE_REPLICATION {"Slave_retried_transactions",(char*) &show_slave_retried_trans, SHOW_FUNC}, {"Slave_running", (char*) &show_slave_running, SHOW_FUNC}, #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_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 {"Ssl_accept_renegotiates", (char*) &show_ssl_ctx_sess_accept_renegotiate, SHOW_FUNC}, {"Ssl_accepts", (char*) &show_ssl_ctx_sess_accept, SHOW_FUNC}, {"Ssl_callback_cache_hits", (char*) &show_ssl_ctx_sess_cb_hits, SHOW_FUNC}, {"Ssl_cipher", (char*) &show_ssl_get_cipher, SHOW_FUNC}, {"Ssl_cipher_list", (char*) &show_ssl_get_cipher_list, SHOW_FUNC}, {"Ssl_client_connects", (char*) &show_ssl_ctx_sess_connect, SHOW_FUNC}, {"Ssl_connect_renegotiates", (char*) &show_ssl_ctx_sess_connect_renegotiate, SHOW_FUNC}, {"Ssl_ctx_verify_depth", (char*) &show_ssl_ctx_get_verify_depth, SHOW_FUNC}, {"Ssl_ctx_verify_mode", (char*) &show_ssl_ctx_get_verify_mode, SHOW_FUNC}, {"Ssl_default_timeout", (char*) &show_ssl_get_default_timeout, SHOW_FUNC}, {"Ssl_finished_accepts", (char*) &show_ssl_ctx_sess_accept_good, SHOW_FUNC}, {"Ssl_finished_connects", (char*) &show_ssl_ctx_sess_connect_good, SHOW_FUNC}, {"Ssl_session_cache_hits", (char*) &show_ssl_ctx_sess_hits, SHOW_FUNC}, {"Ssl_session_cache_misses", (char*) &show_ssl_ctx_sess_misses, SHOW_FUNC}, {"Ssl_session_cache_mode", (char*) &show_ssl_ctx_get_session_cache_mode, SHOW_FUNC}, {"Ssl_session_cache_overflows", (char*) &show_ssl_ctx_sess_cache_full, SHOW_FUNC}, {"Ssl_session_cache_size", (char*) &show_ssl_ctx_sess_get_cache_size, SHOW_FUNC}, {"Ssl_session_cache_timeouts", (char*) &show_ssl_ctx_sess_timeouts, SHOW_FUNC}, {"Ssl_sessions_reused", (char*) &show_ssl_session_reused, SHOW_FUNC}, {"Ssl_used_session_cache_entries",(char*) &show_ssl_ctx_sess_number, SHOW_FUNC}, {"Ssl_verify_depth", (char*) &show_ssl_get_verify_depth, SHOW_FUNC}, {"Ssl_verify_mode", (char*) &show_ssl_get_verify_mode, SHOW_FUNC}, {"Ssl_version", (char*) &show_ssl_get_version, SHOW_FUNC}, #endif /* HAVE_OPENSSL */ {"Syncs", (char*) &my_sync_count, SHOW_LONG_NOFLUSH}, {"Table_locks_immediate", (char*) &locks_immediate, SHOW_LONG}, {"Table_locks_waited", (char*) &locks_waited, SHOW_LONG}, #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}, {"Tc_log_page_waits", (char*) &tc_log_page_waits, SHOW_LONG}, #endif {"Threads_cached", (char*) &cached_thread_count, SHOW_LONG_NOFLUSH}, {"Threads_connected", (char*) &thread_count, SHOW_INT}, {"Threads_created", (char*) &thread_created, SHOW_LONG_NOFLUSH}, {"Threads_running", (char*) &thread_running, SHOW_INT}, {"Uptime", (char*) &show_starttime, SHOW_FUNC}, #ifdef COMMUNITY_SERVER {"Uptime_since_flush_status",(char*) &show_flushstatustime, SHOW_FUNC}, #endif {NullS, NullS, SHOW_LONG} }; #ifndef EMBEDDED_LIBRARY static void print_version(void) { set_server_version(); /* Note: the instance manager keys off the string 'Ver' so it can find the version from the output of 'mysqld --version', so don't change it! */ printf("%s Ver %s for %s on %s (%s)\n",my_progname, server_version,SYSTEM_TYPE,MACHINE_TYPE, MYSQL_COMPILATION_COMMENT); } static void usage(void) { if (!(default_charset_info= get_charset_by_csname(default_character_set_name, MY_CS_PRIMARY, MYF(MY_WME)))) exit(1); if (!default_collation_name) default_collation_name= (char*) default_charset_info->name; print_version(); puts("\ Copyright (C) 2000-2008 MySQL AB, by Monty and others.\n\ Copyright (C) 2008 Sun Microsystems, Inc.\n\ Copyright (C) 2009-2011 Monty Program Ab.\n\ This software comes with ABSOLUTELY NO WARRANTY. This is free software,\n\ and you are welcome to modify and redistribute it under the GPL license\n\n\ Starts the MySQL 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 __WIN__ 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 */ my_print_help_inc_plugins(my_long_options, sizeof(my_long_options)/sizeof(my_option)); if (! plugins_are_initialized) { puts("\n\ Plugins have parameters that are not reflected in this list\n\ because execution stopped before plugins were initialized."); } puts("\n\ To see what values a running MySQL server is using, type\n\ 'mysqladmin variables' instead of 'mysqld --verbose --help'."); } } #endif /*!EMBEDDED_LIBRARY*/ /** Initialize all MySQL global variables to default values. We don't need to set numeric variables refered to in my_long_options as these are initialized by my_getopt. @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 numeric variables refered to in my_long_options as these are initialized by my_getopt. */ static int mysql_init_variables(void) { int error; /* 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 */ myisam_test_invalid_symlink= test_if_data_home_dir; #endif opt_log= opt_slow_log= 0; opt_update_log= 0; log_output_options= find_bit_type(log_output_str, &log_output_typelib); opt_bin_log= 0; opt_disable_networking= opt_skip_show_db=0; opt_skip_name_resolve= 0; opt_ignore_builtin_innodb= 0; opt_logname= opt_update_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_secure_auth= 0; opt_secure_file_priv= 0; opt_bootstrap= opt_myisam_log= 0; mqh_used= 0; segfaulted= kill_in_progress= 0; cleanup_done= 0; defaults_argc= 0; defaults_argv= 0; server_id_supplied= 0; test_flags= select_errors= dropping_tables= ha_open_options=0; thread_count= thread_running= kill_cached_threads= wake_thread=0; slave_open_temp_tables= 0; cached_thread_count= 0; opt_endinfo= using_udf_functions= 0; opt_using_transactions= 0; abort_loop= select_thread_in_use= signal_thread_in_use= 0; ready_to_exit= shutdown_in_progress= grant_option= 0; aborted_threads= aborted_connects= 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; errmesg= 0; mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS; bzero((uchar*) &mysql_tmpdir_list, sizeof(mysql_tmpdir_list)); bzero((char *) &global_status_var, sizeof(global_status_var)); opt_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_utf8_general_ci; files_charset_info= &my_charset_utf8_general_ci; national_charset_info= &my_charset_utf8_general_ci; table_alias_charset= &my_charset_bin; character_set_filesystem= &my_charset_bin; opt_date_time_formats[0]= opt_date_time_formats[1]= opt_date_time_formats[2]= 0; /* Things with default values that are not zero */ delay_key_write_options= (uint) DELAY_KEY_WRITE_ON; slave_exec_mode_options= find_bit_type_or_exit(slave_exec_mode_str, &slave_exec_mode_typelib, NULL, &error); /* Default mode string must not yield a error. */ DBUG_ASSERT(!error); if (error) return 1; opt_specialflag= SPECIAL_ENGLISH; unix_sock= base_ip_sock= extra_ip_sock= INVALID_SOCKET; mysql_home_ptr= mysql_home; pidfile_name_ptr= pidfile_name; log_error_file_ptr= log_error_file; language_ptr= language; mysql_data_home= mysql_real_data_home; thd_startup_options= (OPTION_AUTO_IS_NULL | OPTION_BIN_LOG | OPTION_QUOTE_SHOW_CREATE | OPTION_SQL_NOTES); protocol_version= PROTOCOL_VERSION; what_to_log= ~ (1L << (uint) COM_TIME); refresh_version= 1L; /* Increments on each reload */ global_query_id= thread_id= 1L; strmov(server_version, MYSQL_SERVER_VERSION); sql_mode_str= ""; /* By default, auto-repair MyISAM tables after crash */ myisam_recover_options_str= "DEFAULT"; myisam_recover_options= HA_RECOVER_DEFAULT; ha_open_options|= HA_OPEN_ABORT_IF_CRASHED; myisam_stats_method_str= "nulls_unequal"; my_bind_addr = htonl(INADDR_ANY); threads.empty(); thread_cache.empty(); 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 */ strmake(language, LANGUAGE, sizeof(language)-1); strmake(mysql_real_data_home, get_relative_path(MYSQL_DATADIR), sizeof(mysql_real_data_home)-1); mysql_data_home_buff[0]=FN_CURLIB; // all paths are relative from here mysql_data_home_buff[1]=0; mysql_data_home_len= 2; /* Replication parameters */ master_user= (char*) "test"; master_password= master_host= 0; master_info_file= (char*) "master.info", relay_log_info_file= (char*) "relay-log.info"; master_ssl_key= master_ssl_cert= master_ssl_ca= master_ssl_capath= master_ssl_cipher= 0; report_user= report_password = report_host= 0; /* TO BE DELETED */ opt_relay_logname= opt_relaylog_index_name= 0; /* Variables in libraries */ charsets_dir= 0; default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME; default_collation_name= compiled_default_collation_name; sys_charset_system.value= (char*) system_charset_info->csname; character_set_filesystem_name= (char*) "binary"; lc_time_names_name= (char*) "en_US"; /* Set default values for some option variables */ default_storage_engine_str= (char*) "MyISAM"; global_system_variables.table_plugin= NULL; global_system_variables.tx_isolation= ISO_REPEATABLE_READ; global_system_variables.select_limit= (ulonglong) HA_POS_ERROR; max_system_variables.select_limit= (ulonglong) HA_POS_ERROR; global_system_variables.max_join_size= (ulonglong) HA_POS_ERROR; max_system_variables.max_join_size= (ulonglong) HA_POS_ERROR; global_system_variables.old_passwords= 0; global_system_variables.old_alter_table= 0; global_system_variables.binlog_format= BINLOG_FORMAT_UNSPEC; global_system_variables.log_slow_verbosity= LOG_SLOW_VERBOSITY_INIT; global_system_variables.log_slow_filter= QPLAN_ALWAYS_SET; /* Default behavior for 4.1 and 5.0 is to treat NULL values as unequal when collecting index statistics for MyISAM tables. */ global_system_variables.myisam_stats_method= MI_STATS_METHOD_NULLS_NOT_EQUAL; global_system_variables.optimizer_switch= OPTIMIZER_SWITCH_DEFAULT; /* Variables that depends on compile options */ #ifndef DBUG_OFF default_dbug_option=IF_WIN("d:t:i:O,\\mysqld.trace", "d:t:i:o,/tmp/mysqld.trace"); current_dbug_option= default_dbug_option; #endif opt_error_log= IF_WIN(1,0); #ifdef COMMUNITY_SERVER have_community_features = SHOW_OPTION_YES; #else have_community_features = SHOW_OPTION_NO; #endif global_system_variables.ndb_index_stat_enable=FALSE; max_system_variables.ndb_index_stat_enable=TRUE; global_system_variables.ndb_index_stat_cache_entries=32; max_system_variables.ndb_index_stat_cache_entries=~0L; global_system_variables.ndb_index_stat_update_freq=20; max_system_variables.ndb_index_stat_update_freq=~0L; #ifdef HAVE_OPENSSL have_ssl=SHOW_OPTION_YES; #else 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; ssl_acceptor_fd= 0; #endif #ifdef HAVE_SMEM shared_memory_base_name= default_shared_memory_base_name; #endif #if !defined(my_pthread_setprio) && !defined(HAVE_PTHREAD_SETSCHEDPARAM) opt_specialflag |= SPECIAL_NO_PRIOR; #endif #if defined(__WIN__) || defined(__NETWARE__) /* Allow Win32 and NetWare users to move MySQL anywhere */ { char prg_dev[LIBLEN]; #if defined __WIN__ 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 #endif my_path(prg_dev,my_progname,"mysql/bin"); strcat(prg_dev,"/../"); // Remove 'bin' to get base dir cleanup_dirname(mysql_home,prg_dev); } #else const char *tmpenv; if (!(tmpenv = getenv("MY_BASEDIR_VERSION"))) tmpenv = DEFAULT_MYSQL_HOME; (void) strmake(mysql_home, tmpenv, sizeof(mysql_home)-1); #endif return 0; } /** Find type for option If opt_ignore_wrong_options is set ignore wrong values otherwise exit @return @retval 0 ok ; *result is updated @retval 1 error ; *result is not touched */ static my_bool find_opt_type(const char *x, TYPELIB *typelib, const char *option, int *result) { int res; if (opt_ignore_wrong_options) { if ((res= find_type_with_warning(x, typelib, option)) <= 0) return 1; } else res= find_type_or_exit(x, typelib, option); *result= res; return 0; } /** Get next option from the command line */ my_bool mysqld_get_one_option(int optid, const struct my_option *opt __attribute__((unused)), char *argument) { int error; switch(optid) { #ifndef DBUG_OFF case OPT_DEBUG_FLUSH: argument= IF_WIN((char*) default_dbug_option, (char*) "d:t:i:O,/tmp/mysqld.trace"); /* fall through */ case '#': 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); opt_endinfo=1; /* unireg: memory allocation */ break; #endif case '0': WARN_DEPRECATED(NULL, VER_CELOSIA, "--log-long-format", "--log-short-format"); break; case OPT_DEPRECATED_OPTION: sql_print_warning("'%s' is deprecated and exists only for compatiblity with old my.cnf files; Please remove this option from all your my.cnf files!", opt->name); break; case 'a': global_system_variables.sql_mode= fix_sql_mode(MODE_ANSI); global_system_variables.tx_isolation= ISO_SERIALIZABLE; break; case 'b': strmake(mysql_home,argument,sizeof(mysql_home)-1); break; case OPT_DEFAULT_CHARACTER_SET_OLD: // --default-character-set WARN_DEPRECATED(NULL, VER_CELOSIA, "--default-character-set", "--character-set-server"); /* Fall through */ case 'C': if (default_collation_name == compiled_default_collation_name) default_collation_name= 0; break; case 'l': WARN_DEPRECATED(NULL, "7.0", "--log", "'--general_log'/'--general_log_file'"); opt_log=1; break; case 'h': strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1); /* Correct pointer set by my_getopt (for embedded library) */ mysql_data_home= mysql_real_data_home; mysql_data_home_len= strlen(mysql_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(language, argument, sizeof(language)-1); break; case 'O': WARN_DEPRECATED(NULL, VER_CELOSIA, "--set-variable", "--variable-name=value"); break; #ifdef HAVE_REPLICATION case OPT_SLAVE_SKIP_ERRORS: init_slave_skip_errors(argument); break; case OPT_SLAVE_EXEC_MODE: slave_exec_mode_options= find_bit_type_or_exit(argument, &slave_exec_mode_typelib, "", &error); if (error) return 1; break; #endif case OPT_SAFEMALLOC_MEM_LIMIT: #if !defined(DBUG_OFF) && defined(SAFEMALLOC) sf_malloc_mem_limit = atoi(argument); #endif break; #include #ifndef EMBEDDED_LIBRARY case 'V': print_version(); exit(0); #endif /*EMBEDDED_LIBRARY*/ case OPT_WARNINGS: WARN_DEPRECATED(NULL, VER_CELOSIA, "--warnings", "--log-warnings"); /* Note: fall-through to 'W' */ 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) : 0; opt_endinfo=1; break; case (int) OPT_DEFAULT_COLLATION_OLD: WARN_DEPRECATED(NULL, VER_CELOSIA, "--default-collation", "--collation-server"); break; case (int) OPT_SAFE_SHOW_DB: WARN_DEPRECATED(NULL, VER_CELOSIA, "--safe-show-database", "GRANT SHOW DATABASES"); break; case (int) OPT_LOG_BIN_TRUST_FUNCTION_CREATORS_OLD: WARN_DEPRECATED(NULL, VER_CELOSIA, "--log-bin-trust-routine-creators", "--log-bin-trust-function-creators"); break; case (int) OPT_ENABLE_LOCK: WARN_DEPRECATED(NULL, VER_CELOSIA, "--enable-locking", "--external-locking"); break; case (int) OPT_BIG_TABLES: thd_startup_options|=OPTION_BIG_TABLES; break; case (int) OPT_IGNORE_BUILTIN_INNODB: opt_ignore_builtin_innodb= 1; break; case (int) OPT_ISAM_LOG: opt_myisam_log=1; break; case (int) OPT_UPDATE_LOG: WARN_DEPRECATED(NULL, VER_CELOSIA, "--log-update", "--log-bin"); opt_update_log=1; break; case (int) OPT_BIN_LOG: opt_bin_log= test(argument != disabled_my_option); break; case (int) OPT_LOG_BASENAME: { if (opt_log_basename[0] == 0 || strchr(opt_log_basename, FN_EXTCHAR) || strchr(opt_log_basename,FN_LIBCHAR)) { sql_print_error("Wrong argument for --log-basename. It can't be empty or contain '.' or '" FN_DIRSEP "'"); return 1; } log_error_file_ptr= argument; /* The following file named needs explicite extensions (should be fixed in future by having the creating code do this). */ opt_logname= make_once_alloced_filename(argument, ".log"); opt_slow_logname= make_once_alloced_filename(argument, "-slow.log"); opt_bin_logname= make_once_alloced_filename(argument, "-bin"); opt_binlog_index_name= make_once_alloced_filename(argument, "-bin.index"); opt_relay_logname= make_once_alloced_filename(argument, "-relay-bin"); opt_relaylog_index_name=make_once_alloced_filename(argument, "-relay-bin.index"); pidfile_name_ptr= pidfile_name; strmake(pidfile_name, argument, sizeof(pidfile_name)-5); strmov(fn_ext(pidfile_name),".pid"); /* The following is depricated so don't set it by default */ if (opt_update_logname) opt_update_logname= argument; /* check for errors */ if (!opt_bin_logname || !opt_relaylog_index_name || ! opt_logname || ! opt_slow_logname) return 1; // out of memory error break; } case (int) OPT_ERROR_LOG_FILE: opt_error_log= (argument != disabled_my_option); break; #ifdef HAVE_REPLICATION case (int) OPT_INIT_RPL_ROLE: { int role; LINT_INIT(role); if (!find_opt_type(argument, &rpl_role_typelib, opt->name, &role)) { rpl_status = (role == 1) ? RPL_AUTH_MASTER : RPL_IDLE_SLAVE; break; } } case (int)OPT_REPLICATE_IGNORE_DB: { rpl_filter->add_ignore_db(argument); break; } case (int)OPT_REPLICATE_DO_DB: { rpl_filter->add_do_db(argument); break; } case (int)OPT_REPLICATE_REWRITE_DB: { /* See also OPT_REWRITE_DB handling in client/mysqlbinlog.cc */ char* key = argument,*p, *val; if (!(p= strstr(argument, "->"))) { sql_print_error("Bad syntax in replicate-rewrite-db - missing '->'!\n"); return 1; } val= p--; while (my_isspace(mysqld_charset, *p) && p > argument) *p-- = 0; if (p == argument) { sql_print_error("Bad syntax in replicate-rewrite-db - empty FROM db!\n"); return 1; } *val= 0; val+= 2; while (*val && my_isspace(mysqld_charset, *val)) val++; if (!*val) { sql_print_error("Bad syntax in replicate-rewrite-db - empty TO db!\n"); return 1; } rpl_filter->add_db_rewrite(key, val); break; } case (int)OPT_BINLOG_IGNORE_DB: { binlog_filter->add_ignore_db(argument); break; } case OPT_BINLOG_FORMAT: { int id; LINT_INIT(id); if (!find_opt_type(argument, &binlog_format_typelib, opt->name, &id)) { global_system_variables.binlog_format= opt_binlog_format_id= id - 1; } break; } case (int)OPT_BINLOG_DO_DB: { binlog_filter->add_do_db(argument); break; } case (int)OPT_REPLICATE_DO_TABLE: { if (rpl_filter->add_do_table(argument)) { sql_print_error("Could not add do table rule '%s'!\n", argument); return 1; } break; } case (int)OPT_REPLICATE_WILD_DO_TABLE: { if (rpl_filter->add_wild_do_table(argument)) { sql_print_error("Could not add do table rule '%s'!\n", argument); return 1; } break; } case (int)OPT_REPLICATE_WILD_IGNORE_TABLE: { if (rpl_filter->add_wild_ignore_table(argument)) { sql_print_error("Could not add ignore table rule '%s'!\n", argument); return 1; } break; } case (int)OPT_REPLICATE_IGNORE_TABLE: { if (rpl_filter->add_ignore_table(argument)) { sql_print_error("Could not add ignore table rule '%s'!\n", argument); return 1; } break; } #endif /* HAVE_REPLICATION */ case (int) OPT_SLOW_QUERY_LOG: opt_slow_log= 1; break; case OPT_LOG_OUTPUT: { if (!argument || !argument[0]) { log_output_options= LOG_FILE; log_output_str= log_output_typelib.type_names[1]; } else { log_output_str= argument; log_output_options= find_bit_type_or_exit(argument, &log_output_typelib, opt->name, &error); if (error) return 1; } break; } case OPT_EVENT_SCHEDULER: #ifndef HAVE_EVENT_SCHEDULER sql_print_error("Event scheduler is not supported in embedded build."); #else if (Events::set_opt_event_scheduler(argument)) return 1; #endif break; case (int) OPT_SAFE: opt_specialflag|= SPECIAL_SAFE_MODE | SPECIAL_NO_NEW_FUNC; delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE; myisam_recover_options= HA_RECOVER_DEFAULT; ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE); #ifdef HAVE_QUERY_CACHE query_cache_size=0; #endif break; case (int) OPT_SKIP_PRIOR: opt_specialflag|= SPECIAL_NO_PRIOR; sql_print_warning("The --skip-thread-priority startup option is deprecated " "and will be removed in MySQL 7.0. MySQL 6.0 and up do not " "give threads different priorities."); break; case (int) OPT_SKIP_LOCK: WARN_DEPRECATED(NULL, VER_CELOSIA, "--skip-locking", "--skip-external-locking"); opt_external_locking=0; break; case (int) OPT_SQL_BIN_UPDATE_SAME: WARN_DEPRECATED(NULL, VER_CELOSIA, "--sql-bin-update-same", "the binary log"); break; case (int) OPT_RECORD_BUFFER_OLD: WARN_DEPRECATED(NULL, VER_CELOSIA, "record_buffer", "read_buffer_size"); break; case (int) OPT_SYMBOLIC_LINKS: WARN_DEPRECATED(NULL, VER_CELOSIA, "--use-symbolic-links", "--symbolic-links"); break; case (int) OPT_SKIP_HOST_CACHE: opt_specialflag|= SPECIAL_NO_HOST_CACHE; break; case (int) OPT_SKIP_RESOLVE: opt_skip_name_resolve= 1; opt_specialflag|=SPECIAL_NO_RESOLVE; break; case (int) OPT_SKIP_NETWORKING: #if defined(__NETWARE__) sql_perror("Can't start server: skip-networking option is currently not supported on NetWare"); return 1; #endif opt_disable_networking=1; mysqld_port= mysqld_extra_port= 0; break; case (int) OPT_SKIP_SHOW_DB: opt_skip_show_db=1; opt_specialflag|=SPECIAL_SKIP_SHOW_DB; break; case (int) OPT_WANT_CORE: test_flags |= TEST_CORE_ON_SIGNAL; break; case (int) OPT_SKIP_SYMLINKS: WARN_DEPRECATED(NULL, VER_CELOSIA, "--skip-symlink", "--skip-symbolic-links"); my_use_symdir=0; break; case (int) OPT_BIND_ADDRESS: if ((my_bind_addr= (ulong) inet_addr(argument)) == INADDR_NONE) { struct hostent *ent; if (argument[0]) ent=gethostbyname(argument); else { char myhostname[255]; if (gethostname(myhostname,sizeof(myhostname)) < 0) { sql_perror("Can't start server: cannot get my own hostname!"); return 1; } ent=gethostbyname(myhostname); } if (!ent) { sql_perror("Can't start server: cannot resolve hostname!"); return 1; } my_bind_addr = (ulong) ((in_addr*)ent->h_addr_list[0])->s_addr; } break; case (int) OPT_PID_FILE: strmake(pidfile_name, argument, sizeof(pidfile_name)-1); break; #ifdef __WIN__ case (int) OPT_STANDALONE: /* Dummy option for NT */ break; #endif /* The following change issues a deprecation warning if the slave configuration is specified either in the my.cnf file or on the command-line. See BUG#21490. */ case OPT_MASTER_HOST: case OPT_MASTER_USER: case OPT_MASTER_PASSWORD: case OPT_MASTER_PORT: case OPT_MASTER_CONNECT_RETRY: case OPT_MASTER_SSL: case OPT_MASTER_SSL_KEY: case OPT_MASTER_SSL_CERT: case OPT_MASTER_SSL_CAPATH: case OPT_MASTER_SSL_CIPHER: case OPT_MASTER_SSL_CA: if (!slave_warning_issued) //only show the warning once { slave_warning_issued = true; WARN_DEPRECATED(NULL, "6.0", opt->name, "'CHANGE MASTER'"); } break; case OPT_CONSOLE: if (opt_console) opt_error_log= 0; // Force logs to stdout break; case (int) OPT_FLUSH: myisam_flush=1; flush_time=0; // No auto flush break; case OPT_LOW_PRIORITY_UPDATES: thr_upgraded_concurrent_insert_lock= TL_WRITE_LOW_PRIORITY; global_system_variables.low_priority_updates=1; break; case OPT_BOOTSTRAP: opt_noacl=opt_bootstrap=1; break; case OPT_LOG_SLOW_FILTER: global_system_variables.log_slow_filter= find_bit_type_or_exit(argument, &log_slow_filter_typelib, opt->name, &error); /* If we are using filters, we set opt_slow_admin_statements to be always true so we can maintain everything with filters */ opt_log_slow_admin_statements= 1; if (error) return 1; break; case OPT_LOG_SLOW_VERBOSITY: global_system_variables.log_slow_verbosity= find_bit_type_or_exit(argument, &log_slow_verbosity_typelib, opt->name, &error); if (error) return 1; break; case OPT_SERVER_ID: server_id_supplied = 1; break; case OPT_DELAY_KEY_WRITE_ALL: WARN_DEPRECATED(NULL, VER_CELOSIA, "--delay-key-write-for-all-tables", "--delay-key-write=ALL"); if (argument != disabled_my_option) argument= (char*) "ALL"; /* Fall through */ case OPT_DELAY_KEY_WRITE: if (argument == disabled_my_option) delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE; else if (! argument) delay_key_write_options= (uint) DELAY_KEY_WRITE_ON; else { int type; LINT_INIT(type); if (!find_opt_type(argument, &delay_key_write_typelib, opt->name, &type)) delay_key_write_options= (uint) type-1; } break; case OPT_CHARSETS_DIR: strmake(mysql_charsets_dir, argument, sizeof(mysql_charsets_dir)-1); charsets_dir = mysql_charsets_dir; break; case OPT_TX_ISOLATION: { int type; LINT_INIT(type); if (!find_opt_type(argument, &tx_isolation_typelib, opt->name, &type)) global_system_variables.tx_isolation= (type-1); break; } #ifdef WITH_NDBCLUSTER_STORAGE_ENGINE case OPT_NDB_MGMD: case OPT_NDB_NODEID: { int len= my_snprintf(opt_ndb_constrbuf+opt_ndb_constrbuf_len, sizeof(opt_ndb_constrbuf)-opt_ndb_constrbuf_len, "%s%s%s",opt_ndb_constrbuf_len > 0 ? ",":"", optid == OPT_NDB_NODEID ? "nodeid=" : "", argument); opt_ndb_constrbuf_len+= len; } /* fall through to add the connectstring to the end * and set opt_ndbcluster_connectstring */ case OPT_NDB_CONNECTSTRING: if (opt_ndb_connectstring && opt_ndb_connectstring[0]) my_snprintf(opt_ndb_constrbuf+opt_ndb_constrbuf_len, sizeof(opt_ndb_constrbuf)-opt_ndb_constrbuf_len, "%s%s", opt_ndb_constrbuf_len > 0 ? ",":"", opt_ndb_connectstring); else opt_ndb_constrbuf[opt_ndb_constrbuf_len]= 0; opt_ndbcluster_connectstring= opt_ndb_constrbuf; break; case OPT_NDB_DISTRIBUTION: int id; if (!find_opt_type(argument, &ndb_distribution_typelib, opt->name, &id)) opt_ndb_distribution_id= (enum ndb_distribution)(id-1); break; case OPT_NDB_EXTRA_LOGGING: if (!argument) ndb_extra_logging++; else if (argument == disabled_my_option) ndb_extra_logging= 0L; else ndb_extra_logging= atoi(argument); break; #endif case OPT_MYISAM_RECOVER: { if (argument && (!argument[0] || my_strcasecmp(system_charset_info, argument, "OFF") == 0)) { myisam_recover_options= HA_RECOVER_NONE; myisam_recover_options_str= "OFF"; ha_open_options&= ~HA_OPEN_ABORT_IF_CRASHED; } else { if (!argument) { myisam_recover_options= HA_RECOVER_DEFAULT; myisam_recover_options_str= myisam_recover_typelib.type_names[0]; } else { myisam_recover_options_str=argument; myisam_recover_options= find_bit_type_or_exit(argument, &myisam_recover_typelib, opt->name, &error); if (error) return 1; } ha_open_options|=HA_OPEN_ABORT_IF_CRASHED; } break; } case OPT_CONCURRENT_INSERT: /* The following code is mainly here to emulate old behavior */ if (!argument) /* --concurrent-insert */ myisam_concurrent_insert= 1; else if (argument == disabled_my_option) myisam_concurrent_insert= 0; /* --skip-concurrent-insert */ break; case OPT_TC_HEURISTIC_RECOVER: find_opt_type(argument, &tc_heuristic_recover_typelib, opt->name, (int*) &tc_heuristic_recover); break; case OPT_MYISAM_STATS_METHOD: { ulong method_conv; int method; LINT_INIT(method_conv); LINT_INIT(method); myisam_stats_method_str= argument; if (!find_opt_type(argument, &myisam_stats_method_typelib, opt->name, &method)) { switch (method-1) { case 2: method_conv= MI_STATS_METHOD_IGNORE_NULLS; break; case 1: method_conv= MI_STATS_METHOD_NULLS_EQUAL; break; case 0: default: method_conv= MI_STATS_METHOD_NULLS_NOT_EQUAL; break; } global_system_variables.myisam_stats_method= method_conv; } break; } case OPT_SQL_MODE: { sql_mode_str= argument; global_system_variables.sql_mode= find_bit_type_or_exit(argument, &sql_mode_typelib, opt->name, &error); if (error) return 1; global_system_variables.sql_mode= fix_sql_mode(global_system_variables. sql_mode); break; } case OPT_OPTIMIZER_SWITCH: { bool not_used; char *error= 0; uint error_len= 0; optimizer_switch_str= argument; global_system_variables.optimizer_switch= (ulong)find_set_from_flags(&optimizer_switch_typelib, optimizer_switch_typelib.count, global_system_variables.optimizer_switch, global_system_variables.optimizer_switch, argument, strlen(argument), NULL, &error, &error_len, ¬_used); if (error) { char buf[512]; char *cbuf= buf; cbuf += my_snprintf(buf, 512, "Error in parsing optimizer_switch setting near %*s\n", error_len, error); sql_perror(buf); return 1; } break; } case OPT_ONE_THREAD: thread_handling= SCHEDULER_NO_THREADS; opt_thread_handling= thread_handling_typelib.type_names[thread_handling]; break; case OPT_THREAD_HANDLING: { int id; LINT_INIT(id); if (!find_opt_type(argument, &thread_handling_typelib, opt->name, &id)) thread_handling= id - 1; opt_thread_handling= thread_handling_typelib.type_names[thread_handling]; break; } case OPT_FT_BOOLEAN_SYNTAX: if (ft_boolean_check_syntax_string((uchar*) argument)) { sql_print_error("Invalid ft-boolean-syntax string: %s\n", argument); return 1; } strmake(ft_boolean_syntax, argument, sizeof(ft_boolean_syntax)-1); break; case OPT_LOWER_CASE_TABLE_NAMES: lower_case_table_names= argument ? atoi(argument) : 1; lower_case_table_names_used= 1; break; case OPT_TEST_IGNORE_WRONG_OPTIONS: /* Used for testing options */ opt_ignore_wrong_options= 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_MAX_LONG_DATA_SIZE: max_long_data_size_used= true; break; } return 0; } /** Handle arguments for multiple key caches. */ C_MODE_START static void* mysql_getopt_value(const char *, uint, const struct my_option *, int *); C_MODE_END static void* mysql_getopt_value(const char *keyname, uint key_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: { KEY_CACHE *key_cache; if (!(key_cache= get_or_create_key_cache(keyname, key_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; } } } return option->value; } extern "C" void option_error_reporter(enum loglevel level, const char *format, ...); 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 (level == ERROR_LEVEL || !opt_bootstrap || global_system_variables.log_warnings) { vprint_msg_to_log(level, format, args); } va_end(args); } /** @todo - FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code? */ static int get_options(int *argc,char **argv) { int ho_error; my_getopt_register_get_addr(mysql_getopt_value); strmake(def_ft_boolean_syntax, ft_boolean_syntax, sizeof(ft_boolean_syntax)-1); my_getopt_error_reporter= option_error_reporter; /* Skip unknown options so that they may be processed later by plugins */ my_getopt_skip_unknown= TRUE; if ((ho_error= handle_options(argc, &argv, my_long_options, mysqld_get_one_option))) return ho_error; (*argc)++; /* add back one for the progname handle_options removes */ /* no need to do this for argv as we are discarding it. */ if ((opt_log_slow_admin_statements || opt_log_queries_not_using_indexes || opt_log_slow_slave_statements) && !opt_slow_log) sql_print_warning("options --log-slow-admin-statements, --log-queries-not-using-indexes and --log-slow-slave-statements have no effect if --log_slow_queries is not set"); 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 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; opt_stack_trace= 1; test_flags&= ~TEST_CORE_ON_SIGNAL; } /* Set global MyISAM variables from delay_key_write_options */ fix_delay_key_write((THD*) 0, OPT_GLOBAL); /* Set global slave_exec_mode from its option */ fix_slave_exec_mode(); global_system_variables.log_slow_filter= fix_log_slow_filter(global_system_variables.log_slow_filter); #ifndef EMBEDDED_LIBRARY if (mysqld_chroot) set_root(mysqld_chroot); #else 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= test(opt_external_locking == 0); my_disable_sync= opt_sync == 0; my_default_record_cache_size=global_system_variables.read_buff_size; myisam_max_temp_length= (my_off_t) global_system_variables.myisam_max_sort_file_size; /* Set global variables based on startup options */ myisam_block_size=(uint) 1 << my_bit_log2(opt_myisam_block_size); my_crc_dbug_check= opt_my_crc_dbug_check; /* 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_JUST_INFO; /* Log all errors not handled by thd->handle_error() to my_message_sql() */ if (global_system_variables.log_warnings >= 11) my_global_flags|= ME_NOREFRESH; if (my_assert_on_error) debug_assert_if_crashed_table= 1; /* long_query_time is in microseconds */ global_system_variables.long_query_time= max_system_variables.long_query_time= (longlong) (long_query_time * 1000000.0); if (opt_short_log_format) opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT; if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE, &global_system_variables.date_format) || init_global_datetime_format(MYSQL_TIMESTAMP_TIME, &global_system_variables.time_format) || init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME, &global_system_variables.datetime_format)) return 1; #ifdef SAFEMALLOC sf_malloc_quick= !sf_malloc_trough_check; #endif #ifdef EMBEDDED_LIBRARY one_thread_scheduler(&thread_scheduler); one_thread_scheduler(&extra_thread_scheduler); #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); else pool_of_threads_scheduler(&thread_scheduler); /* purecov: tested */ one_thread_per_connection_scheduler(&extra_thread_scheduler, &extra_max_connections, &extra_connection_count); #endif /* If max_long_data_size is not specified explicitly use value of max_allowed_packet. */ if (!max_long_data_size_used) max_long_data_size= global_system_variables.max_allowed_packet; 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) */ static void set_server_version(void) { char *end= strxmov(server_version, MYSQL_SERVER_VERSION, MYSQL_SERVER_SUFFIX_STR, NullS); #ifdef EMBEDDED_LIBRARY end= strmov(end, "-embedded"); #endif #ifndef DBUG_OFF if (!strstr(MYSQL_SERVER_SUFFIX_STR, "-debug")) end= strmov(end, "-debug"); #endif if (opt_log || opt_update_log || opt_slow_log || opt_bin_log) strmov(end, "-log"); // This may slow down system } 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++; } 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]; /* All paths are secure if opt_secure_file_path is 0 */ if (!opt_secure_file_priv) return TRUE; 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); return is_prefix(buff2, opt_secure_file_priv) ? TRUE : FALSE; } 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(language,language,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,mysql_real_data_home); (void) my_load_path(opt_plugin_dir, opt_plugin_dir_ptr ? opt_plugin_dir_ptr : get_relative_path(PLUGINDIR), mysql_home); opt_plugin_dir_ptr= opt_plugin_dir; my_realpath(mysql_unpacked_real_data_home, mysql_real_data_home, MYF(0)); mysql_unpacked_real_data_home_len= (int) 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(buff,sharedir,sizeof(buff)-1); /* purecov: tested */ else strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS); convert_dirname(buff,buff,NullS); (void) my_load_path(language,language,buff); /* If --character-sets-dir isn't given, use shared library dir */ if (charsets_dir != mysql_charsets_dir) { strxnmov(mysql_charsets_dir, sizeof(mysql_charsets_dir)-1, buff, CHARSET_DIR, NullS); } (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff); convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS); charsets_dir=mysql_charsets_dir; if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir)) DBUG_RETURN(1); #ifdef HAVE_REPLICATION if (!slave_load_tmpdir) { if (!(slave_load_tmpdir = (char*) my_strdup(mysql_tmpdir, MYF(MY_FAE)))) DBUG_RETURN(1); } #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) { /* For easy check later */ my_free(opt_secure_file_priv, MYF(0)); opt_secure_file_priv= 0; } else { char *secure_file_real_path; if (my_realpath(buff, opt_secure_file_priv, 0)) { sql_print_warning("Failed to normalize the argument for --secure-file-priv."); DBUG_RETURN(1); } secure_file_real_path= (char *)my_malloc(FN_REFLEN, MYF(MY_FAE)); convert_dirname(secure_file_real_path, buff, NullS); my_free(opt_secure_file_priv, MYF(0)); opt_secure_file_priv= secure_file_real_path; } } DBUG_RETURN(0); } static ulong find_bit_type_or_exit(const char *x, TYPELIB *bit_lib, const char *option, int *error) { ulong result; const char **ptr; *error= 0; if ((result= find_bit_type(x, bit_lib)) == ~(ulong) 0) { char *buff= (char *) my_alloca(2048); char *cbuf; ptr= bit_lib->type_names; cbuf= buff + ((!*x) ? my_snprintf(buff, 2048, "No option given to %s\n", option) : my_snprintf(buff, 2048, "Wrong option to %s. Option(s) given: %s\n", option, x)); cbuf+= my_snprintf(cbuf, 2048 - (cbuf-buff), "Alternatives are: '%s'", *ptr); while (*++ptr) cbuf+= my_snprintf(cbuf, 2048 - (cbuf-buff), ",'%s'", *ptr); my_snprintf(cbuf, 2048 - (cbuf-buff), "\n"); sql_perror(buff); *error= 1; my_afree(buff); return 0; } return result; } /** @return a bitfield from a string of substrings separated by ',' or ~(ulong) 0 on error. */ static ulong find_bit_type(const char *x, TYPELIB *bit_lib) { bool found_end; int found_count; const char *end,*i,*j; const char **array, *pos; ulong found,found_int,bit; DBUG_ENTER("find_bit_type"); DBUG_PRINT("enter",("x: '%s'",x)); found=0; found_end= 0; pos=(char *) x; while (*pos == ' ') pos++; found_end= *pos == 0; while (!found_end) { if (!*(end=strcend(pos,','))) /* Let end point at fieldend */ { while (end > pos && end[-1] == ' ') end--; /* Skip end-space */ found_end=1; } found_int=0; found_count=0; for (array=bit_lib->type_names, bit=1 ; (i= *array++) ; bit<<=1) { j=pos; while (j != end) { if (my_toupper(mysqld_charset,*i++) != my_toupper(mysqld_charset,*j++)) goto skip; } found_int=bit; if (! *i) { found_count=1; break; } else if (j != pos) // Half field found { found_count++; // Could be one of two values } skip: ; } if (found_count != 1) DBUG_RETURN(~(ulong) 0); // No unique value found|=found_int; pos=end+1; } DBUG_PRINT("exit",("bit-field: %ld",(ulong) found)); DBUG_RETURN(found); } /* find_bit_type */ /** 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, glob_hostname, dir_name, ".lower-test", MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR); fn_format(buff2, glob_hostname, dir_name, ".LOWER-TEST", MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR); (void) my_delete(buff2, MYF(0)); if ((file= my_create(buff, 0666, O_RDWR, MYF(0))) < 0) { sql_print_warning("Can't create test file %s", buff); DBUG_RETURN(-1); } my_close(file, MYF(0)); if (my_stat(buff2, &stat_info, MYF(0))) result= 1; // Can access file (void) my_delete(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 = my_create(pidfile_name,0664, O_WRONLY | O_TRUNC, MYF(MY_WME))) >= 0) { char buff[21], *end; end= int10_to_str((long) getpid(), buff, 10); *end++= '\n'; if (!my_write(file, (uchar*) buff, (uint) (end-buff), MYF(MY_WME | MY_NABP))) { (void) my_close(file, MYF(0)); return; } (void) my_close(file, MYF(0)); } sql_perror("Can't start server: can't create PID file"); exit(1); } #endif /* EMBEDDED_LIBRARY */ /** Clear most status variables. */ void refresh_status(THD *thd) { pthread_mutex_lock(&LOCK_status); /* Add thread's status variabes to global status */ add_to_status(&global_status_var, &thd->status_var); /* Reset thread's status variables */ bzero((uchar*) &thd->status_var, sizeof(thd->status_var)); bzero((uchar*) &thd->org_status_var, sizeof(thd->org_status_var)); thd->start_bytes_received= 0; /* Reset some global variables */ reset_status_vars(); /* Reset the counters of all key caches (default and named). */ process_key_caches(reset_key_cache_counters); #ifdef COMMUNITY_SERVER flush_status_time= time((time_t*) 0); #endif pthread_mutex_unlock(&LOCK_status); /* Set max_used_connections to the number of currently open connections. Lock LOCK_thread_count out of LOCK_status to avoid deadlocks. Status reset becomes not atomic, but status data is not exact anyway. */ pthread_mutex_lock(&LOCK_thread_count); max_used_connections= thread_count-delayed_insert_threads; pthread_mutex_unlock(&LOCK_thread_count); } /***************************************************************************** Instantiate variables for missing storage engines This section should go away soon *****************************************************************************/ #ifndef WITH_NDBCLUSTER_STORAGE_ENGINE ulong ndb_cache_check_time; ulong ndb_extra_logging; #endif /***************************************************************************** Instantiate templates *****************************************************************************/ #ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION /* Used templates */ template class I_List; template class I_List_iterator; template class I_List; template class I_List; template class I_List; template class I_List; template class I_List_iterator; #endif