~drizzle-trunk/drizzle/development

static sys_var_thd_uint64_t sys_myisam_max_sort_file_size(&vars, "myisam_max_sort_file_size", &SV::myisam_max_sort_file_size, fix_myisam_max_sort_file_size, 1);

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static sys_var_long_ptr sys_myisam_data_pointer_size(&vars, "myisam_data_pointer_size",

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&myisam_data_pointer_size);

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static sys_var_thd_ulonglong sys_myisam_max_sort_file_size(&vars, "myisam_max_sort_file_size", &SV::myisam_max_sort_file_size, fix_myisam_max_sort_file_size, 1);

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static sys_var_thd_ulong sys_myisam_repair_threads(&vars, "myisam_repair_threads", &SV::myisam_repair_threads);

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static sys_var_thd_ulong sys_myisam_sort_buffer_size(&vars, "myisam_sort_buffer_size", &SV::myisam_sort_buff_size);

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/* these two cannot be static */

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sys_var_thd_bool sys_old_alter_table(&vars, "old_alter_table",

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&SV::old_alter_table);

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sys_var_thd_bool sys_old_passwords(&vars, "old_passwords", &SV::old_passwords);

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static sys_var_thd_ulong sys_optimizer_prune_level(&vars, "optimizer_prune_level",

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&SV::optimizer_prune_level);

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static sys_var_thd_ulong sys_optimizer_search_depth(&vars, "optimizer_search_depth",

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&SV::optimizer_search_depth);

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const char *optimizer_use_mrr_names[] = {"auto", "force", "disable", NULL};

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const char *optimizer_use_mrr_names[] = {"auto", "force", "disable", NullS};

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TYPELIB optimizer_use_mrr_typelib= {

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array_elements(optimizer_use_mrr_names) - 1, "",

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optimizer_use_mrr_names, NULL

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&SV::read_rnd_buff_size);

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static sys_var_thd_ulong sys_div_precincrement(&vars, "div_precision_increment",

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&SV::div_precincrement);

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static sys_var_long_ptr sys_rpl_recovery_rank(&vars, "rpl_recovery_rank",

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&rpl_recovery_rank);

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static sys_var_thd_ulong sys_range_alloc_block_size(&vars, "range_alloc_block_size",

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&SV::range_alloc_block_size);

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&SV::trans_prealloc_size,

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0, fix_trans_mem_root);

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static sys_var_bool_ptr sys_secure_auth(&vars, "secure_auth", &opt_secure_auth);

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static sys_var_const_str_ptr sys_secure_file_priv(&vars, "secure_file_priv",

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&opt_secure_file_priv);

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static sys_var_long_ptr sys_server_id(&vars, "server_id", &server_id, fix_server_id);

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static sys_var_bool_ptr sys_slave_compressed_protocol(&vars, "slave_compressed_protocol",

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&opt_slave_compressed_protocol);

376

#ifdef HAVE_REPLICATION

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static sys_var_bool_ptr sys_slave_allow_batching(&vars, "slave_allow_batching",

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&slave_allow_batching);

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static sys_var_set_slave_mode slave_exec_mode(&vars,

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&slave_exec_mode_options,

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&slave_exec_mode_typelib,

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0);

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#endif

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static sys_var_long_ptr sys_slow_launch_time(&vars, "slow_launch_time",

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&slow_launch_time);

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static sys_var_thd_ulong sys_sort_buffer(&vars, "sort_buffer_size",

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static sys_var_thd_optimizer_switch sys_optimizer_switch(&vars, "optimizer_switch",

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&SV::optimizer_switch);

397

static sys_var_const_str sys_ssl_ca(&vars, "ssl_ca", NULL);

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static sys_var_const_str sys_ssl_capath(&vars, "ssl_capath", NULL);

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static sys_var_const_str sys_ssl_cert(&vars, "ssl_cert", NULL);

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static sys_var_const_str sys_ssl_cipher(&vars, "ssl_cipher", NULL);

401

static sys_var_const_str sys_ssl_key(&vars, "ssl_key", NULL);

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static sys_var_thd_storage_engine sys_storage_engine(&vars, "storage_engine",

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&SV::table_plugin);

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static sys_var_bool_ptr sys_sync_frm(&vars, "sync_frm", &opt_sync_frm);

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static sys_var_const_str sys_system_time_zone(&vars, "system_time_zone",

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system_time_zone);

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static sys_var_long_ptr sys_table_def_size(&vars, "table_definition_cache",

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&tx_isolation_typelib,

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fix_tx_isolation,

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check_tx_isolation);

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static sys_var_thd_uint64_t sys_tmp_table_size(&vars, "tmp_table_size",

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static sys_var_thd_ulonglong sys_tmp_table_size(&vars, "tmp_table_size",

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&SV::tmp_table_size);

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static sys_var_bool_ptr sys_timed_mutexes(&vars, "timed_mutexes", &timed_mutexes);

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static sys_var_bool_ptr sys_timed_mutexes(&vars, "timed_mutexes",

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&timed_mutexes);

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static sys_var_const_str sys_version(&vars, "version", server_version);

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static sys_var_const_str sys_version_comment(&vars, "version_comment",

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DRIZZLE_COMPILATION_COMMENT);

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MYSQL_COMPILATION_COMMENT);

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static sys_var_const_str sys_version_compile_machine(&vars, "version_compile_machine",

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MACHINE_TYPE);

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static sys_var_const_str sys_version_compile_os(&vars, "version_compile_os",

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static sys_var_thd_date_time_format sys_time_format(&vars, "time_format",

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&SV::time_format,

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DRIZZLE_TIMESTAMP_TIME);

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MYSQL_TIMESTAMP_TIME);

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static sys_var_thd_date_time_format sys_date_format(&vars, "date_format",

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&SV::date_format,

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DRIZZLE_TIMESTAMP_DATE);

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MYSQL_TIMESTAMP_DATE);

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static sys_var_thd_date_time_format sys_datetime_format(&vars, "datetime_format",

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&SV::datetime_format,

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DRIZZLE_TIMESTAMP_DATETIME);

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MYSQL_TIMESTAMP_DATETIME);

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/* Variables that are bits in THD */

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static sys_var_thd_bit sys_big_selects(&vars, "sql_big_selects", 0,

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set_option_bit,

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OPTION_BIG_SELECTS);

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static sys_var_thd_bit sys_log_off(&vars, "sql_log_off",

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check_log_update,

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set_option_bit,

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OPTION_LOG_OFF);

475

static sys_var_thd_bit sys_log_update(&vars, "sql_log_update",

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check_log_update,

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set_log_update,

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OPTION_BIN_LOG);

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static sys_var_thd_bit sys_log_binlog(&vars, "sql_log_bin",

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check_log_update,

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set_option_bit,

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static sys_var_thd_bit sys_sql_notes(&vars, "sql_notes", 0,

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set_option_bit,

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OPTION_SQL_NOTES);

489

static sys_var_thd_bit sys_auto_is_null(&vars, "sql_auto_is_null", 0,

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set_option_bit,

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OPTION_AUTO_IS_NULL, 0,

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sys_var::SESSION_VARIABLE_IN_BINLOG);

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static sys_var_thd_bit sys_safe_updates(&vars, "sql_safe_updates", 0,

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set_option_bit,

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OPTION_SAFE_UPDATES);

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static sys_var_const_str_ptr sys_repl_report_user(&vars, "report_user", &report_user);

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static sys_var_const_str_ptr sys_repl_report_password(&vars, "report_password", &report_password);

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static unsigned char *slave_get_report_port(THD *thd)

580

static uchar *slave_get_report_port(THD *thd)

499

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{

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thd->sys_var_tmp.long_value= report_port;

501

return (unsigned char*) &thd->sys_var_tmp.long_value;

583

return (uchar*) &thd->sys_var_tmp.long_value;

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}

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static sys_var_readonly sys_repl_report_port(&vars, "report_port", OPT_GLOBAL, SHOW_INT, slave_get_report_port);

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/* Read only variables */

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static sys_var_have_variable sys_have_compress(&vars, "have_compress", &have_compress);

593

static sys_var_have_variable sys_have_crypt(&vars, "have_crypt", &have_crypt);

594

static sys_var_have_plugin sys_have_csv(&vars, "have_csv", C_STRING_WITH_LEN("csv"), MYSQL_STORAGE_ENGINE_PLUGIN);

595

static sys_var_have_variable sys_have_dlopen(&vars, "have_dynamic_loading", &have_dlopen);

596

static sys_var_have_plugin sys_have_innodb(&vars, "have_innodb", C_STRING_WITH_LEN("innodb"), MYSQL_STORAGE_ENGINE_PLUGIN);

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static sys_var_have_variable sys_have_symlink(&vars, "have_symlink", &have_symlink);

598

/* Global read-only variable describing server license */

599

static sys_var_const_str sys_license(&vars, "license", STRINGIFY_ARG(LICENSE));

600

/* Global variables which enable|disable logging */

601

static sys_var_log_state sys_var_general_log(&vars, "general_log", &opt_log,

602

QUERY_LOG_GENERAL);

603

/* Synonym of "general_log" for consistency with SHOW VARIABLES output */

604

static sys_var_log_state sys_var_log(&vars, "log", &opt_log,

605

QUERY_LOG_GENERAL);

606

static sys_var_log_state sys_var_slow_query_log(&vars, "slow_query_log", &opt_slow_log,

607

QUERY_LOG_SLOW);

608

/* Synonym of "slow_query_log" for consistency with SHOW VARIABLES output */

609

static sys_var_log_state sys_var_log_slow(&vars, "log_slow_queries",

610

&opt_slow_log, QUERY_LOG_SLOW);

611

sys_var_str sys_var_general_log_path(&vars, "general_log_file", sys_check_log_path,

612

sys_update_general_log_path,

613

sys_default_general_log_path,

614

opt_logname);

615

sys_var_str sys_var_slow_log_path(&vars, "slow_query_log_file", sys_check_log_path,

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sys_update_slow_log_path,

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sys_default_slow_log_path,

618

opt_slow_logname);

619

static sys_var_log_output sys_var_log_output_state(&vars, "log_output", &log_output_options,

620

&log_output_typelib, 0);

621

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623

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Additional variables (not derived from sys_var class, not accessible as

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@@varname in SELECT or SET). Sorted in alphabetical order to facilitate

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#define FIXED_VARS_SIZE (sizeof(fixed_vars) / sizeof(SHOW_VAR))

520

631

static SHOW_VAR fixed_vars[]= {

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{"back_log", (char*) &back_log, SHOW_LONG},

633

{"character_sets_dir", mysql_charsets_dir, SHOW_CHAR},

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{"init_file", (char*) &opt_init_file, SHOW_CHAR_PTR},

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{"language", language, SHOW_CHAR},

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636

#ifdef HAVE_MLOCKALL

526

638

#endif

527

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{"log_bin", (char*) &opt_bin_log, SHOW_BOOL},

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{"log_error", (char*) log_error_file, SHOW_CHAR},

641

{"lower_case_file_system", (char*) &lower_case_file_system, SHOW_MY_BOOL},

642

{"lower_case_table_names", (char*) &lower_case_table_names, SHOW_INT},

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{"myisam_recover_options", (char*) &myisam_recover_options_str, SHOW_CHAR_PTR},

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{"open_files_limit", (char*) &open_files_limit, SHOW_LONG},

531

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{"pid_file", (char*) pidfile_name, SHOW_CHAR},

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{"plugin_dir", (char*) opt_plugin_dir, SHOW_CHAR},

533

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{"port", (char*) &mysqld_port, SHOW_INT},

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{"protocol_version", (char*) &protocol_version, SHOW_INT},

649

{"skip_external_locking", (char*) &my_disable_locking, SHOW_MY_BOOL},

650

{"skip_networking", (char*) &opt_disable_networking, SHOW_BOOL},

651

{"skip_show_database", (char*) &opt_skip_show_db, SHOW_BOOL},

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{"thread_stack", (char*) &my_thread_stack_size, SHOW_LONG},

536

653

};

537

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539

bool sys_var::check(THD *thd __attribute__((unused)), set_var *var)

656

bool sys_var::check(THD *thd, set_var *var)

540

657

{

541

var->save_result.uint64_t_value= var->value->val_int();

658

var->save_result.ulonglong_value= var->value->val_int();

542

659

return 0;

543

660

}

544

661

571

688

set_var *var)

572

689

{

573

690

char *res= 0, *old_value=(char *)(var ? var->value->str_value.ptr() : 0);

574

uint32_t new_length= (var ? var->value->str_value.length() : 0);

691

uint new_length= (var ? var->value->str_value.length() : 0);

575

692

if (!old_value)

576

693

old_value= (char*) "";

577

694

if (!(res= my_strndup(old_value, new_length, MYF(0))))

585

702

var_str->value= res;

586

703

var_str->value_length= new_length;

587

704

rw_unlock(var_mutex);

588

free(old_value);

705

my_free(old_value, MYF(MY_ALLOW_ZERO_PTR));

589

706

return 0;

590

707

}

591

708

592

709

593

static bool sys_update_init_connect(THD *thd __attribute__((unused)), set_var *var)

710

static bool sys_update_init_connect(THD *thd, set_var *var)

594

711

{

595

712

return update_sys_var_str(&sys_init_connect, &LOCK_sys_init_connect, var);

596

713

}

597

714

598

715

599

static void sys_default_init_connect(THD* thd __attribute__((unused)),

600

enum_var_type type __attribute__((unused)))

716

static void sys_default_init_connect(THD* thd, enum_var_type type)

601

717

{

602

718

update_sys_var_str(&sys_init_connect, &LOCK_sys_init_connect, 0);

603

719

}

604

720

605

721

606

static bool sys_update_init_slave(THD *thd __attribute__((unused)),

607

set_var *var)

722

static bool sys_update_init_slave(THD *thd, set_var *var)

608

723

{

609

724

return update_sys_var_str(&sys_init_slave, &LOCK_sys_init_slave, var);

610

725

}

611

726

612

727

613

static void sys_default_init_slave(THD* thd __attribute__((unused)),

614

enum_var_type type __attribute__((unused)))

728

static void sys_default_init_slave(THD* thd, enum_var_type type)

615

729

{

616

730

update_sys_var_str(&sys_init_slave, &LOCK_sys_init_slave, 0);

617

731

}

635

749

636

750

637

751

static void

638

fix_myisam_max_sort_file_size(THD *thd __attribute__((unused)),

639

enum_var_type type __attribute__((unused)))

752

fix_myisam_max_sort_file_size(THD *thd, enum_var_type type)

640

753

{

641

754

myisam_max_temp_length=

642

755

(my_off_t) global_system_variables.myisam_max_sort_file_size;

686

799

static void fix_completion_type(THD *thd __attribute__((unused)),

687

800

enum_var_type type __attribute__((unused))) {}

688

801

689

static int check_completion_type(THD *thd __attribute__((unused)),

690

set_var *var)

802

static int check_completion_type(THD *thd, set_var *var)

691

803

{

692

int64_t val= var->value->val_int();

804

longlong val= var->value->val_int();

693

805

if (val < 0 || val > 2)

694

806

{

695

807

char buf[64];

704

816

If we are changing the thread variable, we have to copy it to NET too

705

817

706

818

819

#ifdef HAVE_REPLICATION

707

820

static void fix_net_read_timeout(THD *thd, enum_var_type type)

708

821

{

709

822

if (type != OPT_GLOBAL)

722

835

if (type != OPT_GLOBAL)

723

836

thd->net.retry_count=thd->variables.net_retry_count;

724

837

}

725

726

727

extern void fix_delay_key_write(THD *thd __attribute__((unused)),

728

enum_var_type type __attribute__((unused)))

838

#else /* HAVE_REPLICATION */

839

static void fix_net_read_timeout(THD *thd __attribute__((unused)),

840

enum_var_type type __attribute__((unused)))

841

{}

842

static void fix_net_write_timeout(THD *thd __attribute__((unused)),

843

enum_var_type type __attribute__((unused)))

844

{}

845

static void fix_net_retry_count(THD *thd __attribute__((unused)),

846

enum_var_type type __attribute__((unused)))

847

{}

848

#endif /* HAVE_REPLICATION */

849

850

851

extern void fix_delay_key_write(THD *thd, enum_var_type type)

729

852

{

730

853

switch ((enum_delay_key_write) delay_key_write_options) {

731

854

case DELAY_KEY_WRITE_NONE:

741

864

}

742

865

}

743

866

744

bool sys_var_set::update(THD *thd __attribute__((unused)),

745

set_var *var)

867

bool sys_var_set::update(THD *thd, set_var *var)

746

868

{

747

869

*value= var->save_result.ulong_value;

748

870

return 0;

749

871

}

750

872

751

unsigned char *sys_var_set::value_ptr(THD *thd,

752

enum_var_type type __attribute__((unused)),

753

LEX_STRING *base __attribute__((unused)))

873

uchar *sys_var_set::value_ptr(THD *thd, enum_var_type type,

874

LEX_STRING *base)

754

875

{

755

876

char buff[256];

756

String tmp(buff, sizeof(buff), &my_charset_utf8_general_ci);

877

String tmp(buff, sizeof(buff), &my_charset_latin1);

757

878

ulong length;

758

879

ulong val= *value;

759

880

760

881

tmp.length(0);

761

for (uint32_t i= 0; val; val>>= 1, i++)

882

for (uint i= 0; val; val>>= 1, i++)

762

883

{

763

884

if (val & 1)

764

885

{

770

891

771

892

if ((length= tmp.length()))

772

893

length--;

773

return (unsigned char*) thd->strmake(tmp.ptr(), length);

894

return (uchar*) thd->strmake(tmp.ptr(), length);

774

895

}

775

896

776

void sys_var_set_slave_mode::set_default(THD *thd __attribute__((unused)),

777

enum_var_type type __attribute__((unused)))

897

void sys_var_set_slave_mode::set_default(THD *thd, enum_var_type type)

778

898

{

779

899

slave_exec_mode_options= 0;

780

900

bit_do_set(slave_exec_mode_options, SLAVE_EXEC_MODE_STRICT);

802

922

return rc;

803

923

}

804

924

805

void fix_slave_exec_mode(enum_var_type type __attribute__((unused)))

925

void fix_slave_exec_mode(enum_var_type type)

806

926

{

927

DBUG_ENTER("fix_slave_exec_mode");

928

compile_time_assert(sizeof(slave_exec_mode_options) * CHAR_BIT

929

> SLAVE_EXEC_MODE_LAST_BIT - 1);

807

930

if (bit_is_set(slave_exec_mode_options, SLAVE_EXEC_MODE_STRICT) == 1 &&

808

931

bit_is_set(slave_exec_mode_options, SLAVE_EXEC_MODE_IDEMPOTENT) == 1)

809

932

{

810

sql_print_error(_("Ambiguous slave modes combination."

811

" STRICT will be used"));

933

sql_print_error("Ambiguous slave modes combination."

934

" STRICT will be used");

812

935

bit_do_clear(slave_exec_mode_options, SLAVE_EXEC_MODE_IDEMPOTENT);

813

936

}

814

937

if (bit_is_set(slave_exec_mode_options, SLAVE_EXEC_MODE_IDEMPOTENT) == 0)

838

961

my_error(ER_TEMP_TABLE_PREVENTS_SWITCH_OUT_OF_RBR, MYF(0));

839

962

return 1;

840

963

}

841

964

965

if in a stored function/trigger, it's too late to change mode

966

967

if (thd->in_sub_stmt)

968

{

969

my_error(ER_STORED_FUNCTION_PREVENTS_SWITCH_BINLOG_FORMAT, MYF(0));

970

return 1;

971

}

842

972

return sys_var_thd_enum::is_readonly();

843

973

}

844

974

845

975

846

void fix_binlog_format_after_update(THD *thd,

847

enum_var_type type __attribute__((unused)))

976

void fix_binlog_format_after_update(THD *thd, enum_var_type type)

848

977

{

849

978

thd->reset_current_stmt_binlog_row_based();

850

979

}

851

980

852

981

853

static void fix_max_binlog_size(THD *thd __attribute__((unused)),

854

enum_var_type type __attribute__((unused)))

982

static void fix_max_binlog_size(THD *thd, enum_var_type type)

855

983

{

984

DBUG_ENTER("fix_max_binlog_size");

985

DBUG_PRINT("info",("max_binlog_size=%lu max_relay_log_size=%lu",

986

max_binlog_size, max_relay_log_size));

856

987

mysql_bin_log.set_max_size(max_binlog_size);

988

#ifdef HAVE_REPLICATION

857

989

if (!max_relay_log_size)

858

990

active_mi->rli.relay_log.set_max_size(max_binlog_size);

859

return;

991

#endif

992

DBUG_VOID_RETURN;

860

993

}

861

994

862

static void fix_max_relay_log_size(THD *thd __attribute__((unused)),

863

enum_var_type type __attribute__((unused)))

995

static void fix_max_relay_log_size(THD *thd, enum_var_type type)

864

996

{

997

DBUG_ENTER("fix_max_relay_log_size");

998

DBUG_PRINT("info",("max_binlog_size=%lu max_relay_log_size=%lu",

999

max_binlog_size, max_relay_log_size));

1000

#ifdef HAVE_REPLICATION

865

1001

active_mi->rli.relay_log.set_max_size(max_relay_log_size ?

866

1002

max_relay_log_size: max_binlog_size);

867

return;

1003

#endif

1004

DBUG_VOID_RETURN;

868

1005

}

869

1006

870

static void fix_max_connections(THD *thd __attribute__((unused)),

871

enum_var_type type __attribute__((unused)))

1007

static void fix_max_connections(THD *thd, enum_var_type type)

872

1008

{

873

1009

resize_thr_alarm(max_connections + 10);

874

1010

}

892

1028

}

893

1029

894

1030

895

static void fix_server_id(THD *thd __attribute__((unused)),

896

enum_var_type type __attribute__((unused)))

1031

static void fix_server_id(THD *thd, enum_var_type type)

897

1032

{

898

1033

server_id_supplied = 1;

899

1034

thd->server_id= server_id;

901

1036

902

1037

903

1038

bool throw_bounds_warning(THD *thd, bool fixed, bool unsignd,

904

const char *name, int64_t val)

1039

const char *name, longlong val)

905

1040

{

906

1041

if (fixed)

907

1042

{

908

1043

char buf[22];

909

1044

910

1045

if (unsignd)

911

ullstr((uint64_t) val, buf);

1046

ullstr((ulonglong) val, buf);

912

1047

else

913

1048

llstr(val, buf);

914

1049

915

push_warning_printf(thd, DRIZZLE_ERROR::WARN_LEVEL_WARN,

1050

push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,

916

1051

ER_TRUNCATED_WRONG_VALUE,

917

1052

ER(ER_TRUNCATED_WRONG_VALUE), name, buf);

918

1053

}

919

return false;

1054

return FALSE;

920

1055

}

921

1056

922

static uint64_t fix_unsigned(THD *thd, uint64_t num,

1057

static ulonglong fix_unsigned(THD *thd, ulonglong num,

923

1058

const struct my_option *option_limits)

924

1059

{

925

bool fixed= false;

926

uint64_t out= getopt_ull_limit_value(num, option_limits, &fixed);

1060

my_bool fixed= FALSE;

1061

ulonglong out= getopt_ull_limit_value(num, option_limits, &fixed);

927

1062

928

throw_bounds_warning(thd, fixed, true, option_limits->name, (int64_t) num);

1063

throw_bounds_warning(thd, fixed, TRUE, option_limits->name, (longlong) num);

929

1064

return out;

930

1065

}

931

1066

932

static bool get_unsigned(THD *thd __attribute__((unused)), set_var *var)

1067

static bool get_unsigned(THD *thd, set_var *var)

933

1068

{

934

1069

if (var->value->unsigned_flag)

935

var->save_result.uint64_t_value= (uint64_t) var->value->val_int();

1070

var->save_result.ulonglong_value= (ulonglong) var->value->val_int();

936

1071

else

937

1072

{

938

int64_t v= var->value->val_int();

939

var->save_result.uint64_t_value= (uint64_t) ((v < 0) ? 0 : v);

1073

longlong v= var->value->val_int();

1074

var->save_result.ulonglong_value= (ulonglong) ((v < 0) ? 0 : v);

940

1075

}

941

1076

return 0;

942

1077

}

957

1092

958

1093

bool sys_var_long_ptr_global::update(THD *thd, set_var *var)

959

1094

{

960

uint64_t tmp= var->save_result.uint64_t_value;

1095

ulonglong tmp= var->save_result.ulonglong_value;

961

1096

pthread_mutex_lock(guard);

962

1097

if (option_limits)

963

1098

*value= (ulong) fix_unsigned(thd, tmp, option_limits);

964

1099

else

965

1100

{

966

if (tmp > UINT32_MAX)

1101

#if SIZEOF_LONG < SIZEOF_LONG_LONG

1102

/* Avoid overflows on 32 bit systems */

1103

if (tmp > ULONG_MAX)

967

1104

{

968

tmp= UINT32_MAX;

969

throw_bounds_warning(thd, true, true, name,

970

(int64_t) var->save_result.uint64_t_value);

1105

tmp= ULONG_MAX;

1106

throw_bounds_warning(thd, TRUE, TRUE, name,

1107

(longlong) var->save_result.ulonglong_value);

971

1108

}

1109

#endif

972

1110

*value= (ulong) tmp;

973

1111

}

974

1112

977

1115

}

978

1116

979

1117

980

void sys_var_long_ptr_global::set_default(THD *thd __attribute__((unused)), enum_var_type type __attribute__((unused)))

1118

void sys_var_long_ptr_global::set_default(THD *thd, enum_var_type type)

981

1119

{

982

bool not_used;

1120

my_bool not_used;

983

1121

pthread_mutex_lock(guard);

984

1122

*value= (ulong) getopt_ull_limit_value((ulong) option_limits->def_value,

985

1123

option_limits, &not_used);

987

1125

}

988

1126

989

1127

990

bool sys_var_uint64_t_ptr::update(THD *thd, set_var *var)

1128

bool sys_var_ulonglong_ptr::update(THD *thd, set_var *var)

991

1129

{

992

uint64_t tmp= var->save_result.uint64_t_value;

1130

ulonglong tmp= var->save_result.ulonglong_value;

993

1131

pthread_mutex_lock(&LOCK_global_system_variables);

994

1132

if (option_limits)

995

*value= (uint64_t) fix_unsigned(thd, tmp, option_limits);

1133

*value= (ulonglong) fix_unsigned(thd, tmp, option_limits);

996

1134

else

997

*value= (uint64_t) tmp;

1135

*value= (ulonglong) tmp;

998

1136

pthread_mutex_unlock(&LOCK_global_system_variables);

999

1137

return 0;

1000

1138

}

1001

1139

1002

1140

1003

void sys_var_uint64_t_ptr::set_default(THD *thd __attribute__((unused)),

1004

enum_var_type type __attribute__((unused)))

1141

void sys_var_ulonglong_ptr::set_default(THD *thd, enum_var_type type)

1005

1142

{

1006

bool not_used;

1143

my_bool not_used;

1007

1144

pthread_mutex_lock(&LOCK_global_system_variables);

1008

*value= getopt_ull_limit_value((uint64_t) option_limits->def_value,

1145

*value= getopt_ull_limit_value((ulonglong) option_limits->def_value,

1009

1146

option_limits, &not_used);

1010

1147

pthread_mutex_unlock(&LOCK_global_system_variables);

1011

1148

}

1012

1149

1013

1150

1014

bool sys_var_bool_ptr::update(THD *thd __attribute__((unused)), set_var *var)

1151

bool sys_var_bool_ptr::update(THD *thd, set_var *var)

1015

1152

{

1016

*value= (bool) var->save_result.ulong_value;

1153

*value= (my_bool) var->save_result.ulong_value;

1017

1154

return 0;

1018

1155

}

1019

1156

1020

1157

1021

void sys_var_bool_ptr::set_default(THD *thd __attribute__((unused)), enum_var_type type __attribute__((unused)))

1158

void sys_var_bool_ptr::set_default(THD *thd, enum_var_type type)

1022

1159

{

1023

*value= (bool) option_limits->def_value;

1160

*value= (my_bool) option_limits->def_value;

1024

1161

}

1025

1162

1026

1163

1027

bool sys_var_enum::update(THD *thd __attribute__((unused)), set_var *var)

1164

bool sys_var_enum::update(THD *thd, set_var *var)

1028

1165

{

1029

1166

*value= (uint) var->save_result.ulong_value;

1030

1167

return 0;

1031

1168

}

1032

1169

1033

1170

1034

unsigned char *sys_var_enum::value_ptr(THD *thd __attribute__((unused)),

1035

enum_var_type type __attribute__((unused)),

1036

LEX_STRING *base __attribute__((unused)))

1171

uchar *sys_var_enum::value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)

1037

1172

{

1038

return (unsigned char*) enum_names->type_names[*value];

1173

return (uchar*) enum_names->type_names[*value];

1039

1174

}

1040

1175

1041

1176

1042

unsigned char *sys_var_enum_const::value_ptr(THD *thd __attribute__((unused)),

1043

enum_var_type type __attribute__((unused)),

1044

LEX_STRING *base __attribute__((unused)))

1177

uchar *sys_var_enum_const::value_ptr(THD *thd, enum_var_type type,

1178

LEX_STRING *base)

1045

1179

{

1046

return (unsigned char*) enum_names->type_names[global_system_variables.*offset];

1180

return (uchar*) enum_names->type_names[global_system_variables.*offset];

1047

1181

}

1048

1182

1049

1183

bool sys_var_thd_ulong::check(THD *thd, set_var *var)

1054

1188

1055

1189

bool sys_var_thd_ulong::update(THD *thd, set_var *var)

1056

1190

{

1057

uint64_t tmp= var->save_result.uint64_t_value;

1058

1191

ulonglong tmp= var->save_result.ulonglong_value;

1192

1059

1193

/* Don't use bigger value than given with --maximum-variable-name=.. */

1060

1194

if ((ulong) tmp > max_system_variables.*offset)

1061

1195

{

1062

throw_bounds_warning(thd, true, true, name, (int64_t) tmp);

1196

throw_bounds_warning(thd, TRUE, TRUE, name, (longlong) tmp);

1063

1197

tmp= max_system_variables.*offset;

1064

1198

}

1065

1199

1066

1200

if (option_limits)

1067

1201

tmp= (ulong) fix_unsigned(thd, tmp, option_limits);

1068

else if (tmp > UINT32_MAX)

1202

#if SIZEOF_LONG < SIZEOF_LONG_LONG

1203

else if (tmp > ULONG_MAX)

1069

1204

{

1070

tmp= UINT32_MAX;

1071

throw_bounds_warning(thd, true, true, name, (int64_t) var->save_result.uint64_t_value);

1205

tmp= ULONG_MAX;

1206

throw_bounds_warning(thd, TRUE, TRUE, name, (longlong) var->save_result.ulonglong_value);

1072

1207

}

1073

1208

#endif

1209

1074

1210

if (var->type == OPT_GLOBAL)

1075

global_system_variables.*offset= (ulong) tmp;

1076

else

1077

thd->variables.*offset= (ulong) tmp;

1078

1079

return 0;

1080

}

1081

1082

1083

void sys_var_thd_ulong::set_default(THD *thd, enum_var_type type)

1084

{

1085

if (type == OPT_GLOBAL)

1086

{

1087

bool not_used;

1088

/* We will not come here if option_limits is not set */

1089

global_system_variables.*offset=

1090

(ulong) getopt_ull_limit_value((ulong) option_limits->def_value,

1091

option_limits, &not_used);

1092

}

1093

else

1094

thd->variables.*offset= global_system_variables.*offset;

1095

}

1096

1097

1098

unsigned char *sys_var_thd_ulong::value_ptr(THD *thd, enum_var_type type,

1099

LEX_STRING *base __attribute__((unused)))

1100

{

1101

if (type == OPT_GLOBAL)

1102

return (unsigned char*) &(global_system_variables.*offset);

1103

return (unsigned char*) &(thd->variables.*offset);

1211

global_system_variables.*offset= (ulong) tmp;

1212

else

1213

thd->variables.*offset= (ulong) tmp;

1214

1215

return 0;

1216

}

1217

1218

1219

void sys_var_thd_ulong::set_default(THD *thd, enum_var_type type)

1220

{

1221

if (type == OPT_GLOBAL)

1222

{

1223

my_bool not_used;

1224

/* We will not come here if option_limits is not set */

1225

global_system_variables.*offset=

1226

(ulong) getopt_ull_limit_value((ulong) option_limits->def_value,

1227

option_limits, &not_used);

1228

}

1229

else

1230

thd->variables.*offset= global_system_variables.*offset;

1231

}

1232

1233

1234

uchar *sys_var_thd_ulong::value_ptr(THD *thd, enum_var_type type,

1235

LEX_STRING *base)

1236

{

1237

if (type == OPT_GLOBAL)

1238

return (uchar*) &(global_system_variables.*offset);

1239

return (uchar*) &(thd->variables.*offset);

1104

1240

}

1105

1241

1106

1242

1107

1243

bool sys_var_thd_ha_rows::update(THD *thd, set_var *var)

1108

1244

{

1109

uint64_t tmp= var->save_result.uint64_t_value;

1245

ulonglong tmp= var->save_result.ulonglong_value;

1110

1246

1111

1247

/* Don't use bigger value than given with --maximum-variable-name=.. */

1112

1248

if ((ha_rows) tmp > max_system_variables.*offset)

1131

1267

{

1132

1268

if (type == OPT_GLOBAL)

1133

1269

{

1134

bool not_used;

1270

my_bool not_used;

1135

1271

/* We will not come here if option_limits is not set */

1136

1272

pthread_mutex_lock(&LOCK_global_system_variables);

1137

1273

global_system_variables.*offset=

1144

1280

}

1145

1281

1146

1282

1147

unsigned char *sys_var_thd_ha_rows::value_ptr(THD *thd, enum_var_type type,

1148

LEX_STRING *base __attribute__((unused)))

1283

uchar *sys_var_thd_ha_rows::value_ptr(THD *thd, enum_var_type type,

1284

LEX_STRING *base)

1149

1285

{

1150

1286

if (type == OPT_GLOBAL)

1151

return (unsigned char*) &(global_system_variables.*offset);

1152

return (unsigned char*) &(thd->variables.*offset);

1287

return (uchar*) &(global_system_variables.*offset);

1288

return (uchar*) &(thd->variables.*offset);

1153

1289

}

1154

1290

1155

bool sys_var_thd_uint64_t::check(THD *thd, set_var *var)

1291

bool sys_var_thd_ulonglong::check(THD *thd, set_var *var)

1156

1292

{

1157

1293

return get_unsigned(thd, var);

1158

1294

}

1159

1295

1160

bool sys_var_thd_uint64_t::update(THD *thd, set_var *var)

1296

bool sys_var_thd_ulonglong::update(THD *thd, set_var *var)

1161

1297

{

1162

uint64_t tmp= var->save_result.uint64_t_value;

1298

ulonglong tmp= var->save_result.ulonglong_value;

1163

1299

1164

1300

if (tmp > max_system_variables.*offset)

1165

1301

tmp= max_system_variables.*offset;

1170

1306

{

1171

1307

/* Lock is needed to make things safe on 32 bit systems */

1172

1308

pthread_mutex_lock(&LOCK_global_system_variables);

1173

global_system_variables.*offset= (uint64_t) tmp;

1309

global_system_variables.*offset= (ulonglong) tmp;

1174

1310

pthread_mutex_unlock(&LOCK_global_system_variables);

1175

1311

}

1176

1312

else

1177

thd->variables.*offset= (uint64_t) tmp;

1313

thd->variables.*offset= (ulonglong) tmp;

1178

1314

return 0;

1179

1315

}

1180

1316

1181

1317

1182

void sys_var_thd_uint64_t::set_default(THD *thd, enum_var_type type)

1318

void sys_var_thd_ulonglong::set_default(THD *thd, enum_var_type type)

1183

1319

{

1184

1320

if (type == OPT_GLOBAL)

1185

1321

{

1186

bool not_used;

1322

my_bool not_used;

1187

1323

pthread_mutex_lock(&LOCK_global_system_variables);

1188

1324

global_system_variables.*offset=

1189

getopt_ull_limit_value((uint64_t) option_limits->def_value,

1325

getopt_ull_limit_value((ulonglong) option_limits->def_value,

1190

1326

option_limits, &not_used);

1191

1327

pthread_mutex_unlock(&LOCK_global_system_variables);

1192

1328

}

1195

1331

}

1196

1332

1197

1333

1198

unsigned char *sys_var_thd_uint64_t::value_ptr(THD *thd, enum_var_type type,

1199

LEX_STRING *base __attribute__((unused)))

1334

uchar *sys_var_thd_ulonglong::value_ptr(THD *thd, enum_var_type type,

1335

LEX_STRING *base)

1200

1336

{

1201

1337

if (type == OPT_GLOBAL)

1202

return (unsigned char*) &(global_system_variables.*offset);

1203

return (unsigned char*) &(thd->variables.*offset);

1338

return (uchar*) &(global_system_variables.*offset);

1339

return (uchar*) &(thd->variables.*offset);

1204

1340

}

1205

1341

1206

1342

1207

1343

bool sys_var_thd_bool::update(THD *thd, set_var *var)

1208

1344

{

1209

1345

if (var->type == OPT_GLOBAL)

1210

global_system_variables.*offset= (bool) var->save_result.ulong_value;

1346

global_system_variables.*offset= (my_bool) var->save_result.ulong_value;

1211

1347

else

1212

thd->variables.*offset= (bool) var->save_result.ulong_value;

1348

thd->variables.*offset= (my_bool) var->save_result.ulong_value;

1213

1349

return 0;

1214

1350

}

1215

1351

1217

1353

void sys_var_thd_bool::set_default(THD *thd, enum_var_type type)

1218

1354

{

1219

1355

if (type == OPT_GLOBAL)

1220

global_system_variables.*offset= (bool) option_limits->def_value;

1356

global_system_variables.*offset= (my_bool) option_limits->def_value;

1221

1357

else

1222

1358

thd->variables.*offset= global_system_variables.*offset;

1223

1359

}

1224

1360

1225

1361

1226

unsigned char *sys_var_thd_bool::value_ptr(THD *thd, enum_var_type type,

1227

LEX_STRING *base __attribute__((unused)))

1362

uchar *sys_var_thd_bool::value_ptr(THD *thd, enum_var_type type,

1363

LEX_STRING *base)

1228

1364

{

1229

1365

if (type == OPT_GLOBAL)

1230

return (unsigned char*) &(global_system_variables.*offset);

1231

return (unsigned char*) &(thd->variables.*offset);

1366

return (uchar*) &(global_system_variables.*offset);

1367

return (uchar*) &(thd->variables.*offset);

1232

1368

}

1233

1369

1234

1370

1235

bool sys_var::check_enum(THD *thd __attribute__((unused)),

1236

set_var *var, const TYPELIB *enum_names)

1371

bool sys_var::check_enum(THD *thd, set_var *var, const TYPELIB *enum_names)

1237

1372

{

1238

1373

char buff[STRING_BUFFER_USUAL_SIZE];

1239

1374

const char *value;

1252

1387

}

1253

1388

else

1254

1389

{

1255

uint64_t tmp=var->value->val_int();

1390

ulonglong tmp=var->value->val_int();

1256

1391

if (tmp >= enum_names->count)

1257

1392

{

1258

1393

llstr(tmp,buff);

1269

1404

}

1270

1405

1271

1406

1272

bool sys_var::check_set(THD *thd __attribute__((unused)),

1273

set_var *var, TYPELIB *enum_names)

1407

bool sys_var::check_set(THD *thd, set_var *var, TYPELIB *enum_names)

1274

1408

{

1275

1409

bool not_used;

1276

1410

char buff[STRING_BUFFER_USUAL_SIZE], *error= 0;

1277

uint32_t error_len= 0;

1411

uint error_len= 0;

1278

1412

String str(buff, sizeof(buff), system_charset_info), *res;

1279

1413

1280

1414

if (var->value->result_type() == STRING_RESULT)

1281

1415

{

1282

1416

if (!(res= var->value->val_str(&str)))

1283

1417

{

1284

my_stpcpy(buff, "NULL");

1418

strmov(buff, "NULL");

1285

1419

goto err;

1286

1420

}

1287

1421

1300

1434

&not_used));

1301

1435

if (error_len)

1302

1436

{

1303

strmake(buff, error, cmin(sizeof(buff) - 1, (ulong)error_len));

1437

strmake(buff, error, min(sizeof(buff) - 1, error_len));

1304

1438

goto err;

1305

1439

}

1306

1440

}

1307

1441

else

1308

1442

{

1309

uint64_t tmp= var->value->val_int();

1443

ulonglong tmp= var->value->val_int();

1310

1444

1311

1445

if (!m_allow_empty_value &&

1312

1446

tmp == 0)

1320

1454

For when the enum is made to contain 64 elements, as 1ULL<<64 is

1321

1455

undefined, we guard with a "count<64" test.

1322

1456

1323

if (unlikely((tmp >= ((1UL) << enum_names->count)) &&

1457

if (unlikely((tmp >= ((1ULL) << enum_names->count)) &&

1324

1458

(enum_names->count < 64)))

1325

1459

{

1326

1460

llstr(tmp, buff);

1360

1494

switch (show_type()) {

1361

1495

case SHOW_INT:

1362

1496

{

1363

uint32_t value;

1497

uint value;

1364

1498

pthread_mutex_lock(&LOCK_global_system_variables);

1365

1499

value= *(uint*) value_ptr(thd, var_type, base);

1366

1500

pthread_mutex_unlock(&LOCK_global_system_variables);

1367

return new Item_uint((uint64_t) value);

1501

return new Item_uint((ulonglong) value);

1368

1502

}

1369

1503

case SHOW_LONG:

1370

1504

{

1372

1506

pthread_mutex_lock(&LOCK_global_system_variables);

1373

1507

value= *(ulong*) value_ptr(thd, var_type, base);

1374

1508

pthread_mutex_unlock(&LOCK_global_system_variables);

1375

return new Item_uint((uint64_t) value);

1509

return new Item_uint((ulonglong) value);

1376

1510

}

1377

1511

case SHOW_LONGLONG:

1378

1512

{

1379

int64_t value;

1513

longlong value;

1380

1514

pthread_mutex_lock(&LOCK_global_system_variables);

1381

value= *(int64_t*) value_ptr(thd, var_type, base);

1515

value= *(longlong*) value_ptr(thd, var_type, base);

1382

1516

pthread_mutex_unlock(&LOCK_global_system_variables);

1383

1517

return new Item_int(value);

1384

1518

}

1397

1531

pthread_mutex_lock(&LOCK_global_system_variables);

1398

1532

value= *(ha_rows*) value_ptr(thd, var_type, base);

1399

1533

pthread_mutex_unlock(&LOCK_global_system_variables);

1400

return new Item_int((uint64_t) value);

1534

return new Item_int((ulonglong) value);

1401

1535

}

1402

1536

case SHOW_MY_BOOL:

1403

1537

{

1404

int32_t value;

1538

int32 value;

1405

1539

pthread_mutex_lock(&LOCK_global_system_variables);

1406

value= *(bool*) value_ptr(thd, var_type, base);

1540

value= *(my_bool*) value_ptr(thd, var_type, base);

1407

1541

pthread_mutex_unlock(&LOCK_global_system_variables);

1408

1542

return new Item_int(value,1);

1409

1543

}

1414

1548

char *str= *(char**) value_ptr(thd, var_type, base);

1415

1549

if (str)

1416

1550

{

1417

uint32_t length= strlen(str);

1551

uint length= strlen(str);

1418

1552

tmp= new Item_string(thd->strmake(str, length), length,

1419

1553

system_charset_info, DERIVATION_SYSCONST);

1420

1554

}

1468

1602

}

1469

1603

1470

1604

1471

unsigned char *sys_var_thd_enum::value_ptr(THD *thd, enum_var_type type,

1472

LEX_STRING *base __attribute__((unused)))

1605

uchar *sys_var_thd_enum::value_ptr(THD *thd, enum_var_type type,

1606

LEX_STRING *base)

1473

1607

{

1474

1608

ulong tmp= ((type == OPT_GLOBAL) ?

1475

1609

global_system_variables.*offset :

1476

1610

thd->variables.*offset);

1477

return (unsigned char*) enum_names->type_names[tmp];

1611

return (uchar*) enum_names->type_names[tmp];

1478

1612

}

1479

1613

1480

1614

bool sys_var_thd_bit::check(THD *thd, set_var *var)

1490

1624

}

1491

1625

1492

1626

1493

unsigned char *sys_var_thd_bit::value_ptr(THD *thd,

1494

enum_var_type type __attribute__((unused)),

1495

LEX_STRING *base __attribute__((unused)))

1627

uchar *sys_var_thd_bit::value_ptr(THD *thd, enum_var_type type,

1628

LEX_STRING *base)

1496

1629

{

1497

1630

1498

1631

If reverse is 0 (default) return 1 if bit is set.

1499

1632

If reverse is 1, return 0 if bit is set

1500

1633

1501

thd->sys_var_tmp.bool_value= ((thd->options & bit_flag) ?

1634

thd->sys_var_tmp.my_bool_value= ((thd->options & bit_flag) ?

1502

1635

!reverse : reverse);

1503

return (unsigned char*) &thd->sys_var_tmp.bool_value;

1636

return (uchar*) &thd->sys_var_tmp.my_bool_value;

1504

1637

}

1505

1638

1506

1639

1510

1643

DATE_TIME_FORMAT *new_value)

1511

1644

{

1512

1645

DATE_TIME_FORMAT *old;

1646

DBUG_ENTER("sys_var_date_time_format::update2");

1647

DBUG_DUMP("positions", (uchar*) new_value->positions,

1648

sizeof(new_value->positions));

1513

1649

1514

1650

if (type == OPT_GLOBAL)

1515

1651

{

1523

1659

old= (thd->variables.*offset);

1524

1660

(thd->variables.*offset)= new_value;

1525

1661

}

1526

free((char*) old);

1527

return;

1662

my_free((char*) old, MYF(MY_ALLOW_ZERO_PTR));

1663

DBUG_VOID_RETURN;

1528

1664

}

1529

1665

1530

1666

1562

1698

update is aborted

1563

1699

1564

1700

var->save_result.date_time_format= date_time_format_copy(thd, format);

1565

free((char*) format);

1701

my_free((char*) format, MYF(0));

1566

1702

return var->save_result.date_time_format == 0;

1567

1703

}

1568

1704

1588

1724

}

1589

1725

1590

1726

1591

unsigned char *sys_var_thd_date_time_format::value_ptr(THD *thd, enum_var_type type,

1592

LEX_STRING *base __attribute__((unused)))

1727

uchar *sys_var_thd_date_time_format::value_ptr(THD *thd, enum_var_type type,

1728

LEX_STRING *base)

1593

1729

{

1594

1730

if (type == OPT_GLOBAL)

1595

1731

{

1601

1737

1602

1738

res= thd->strmake((global_system_variables.*offset)->format.str,

1603

1739

(global_system_variables.*offset)->format.length);

1604

return (unsigned char*) res;

1740

return (uchar*) res;

1605

1741

}

1606

return (unsigned char*) (thd->variables.*offset)->format.str;

1742

return (uchar*) (thd->variables.*offset)->format.str;

1607

1743

}

1608

1744

1609

1745

1613

1749

const char *new_name;

1614

1750

} my_old_conv;

1615

1751

1616

bool sys_var_collation::check(THD *thd __attribute__((unused)),

1617

set_var *var)

1618

{

1619

const CHARSET_INFO *tmp;

1752

static my_old_conv old_conv[]=

1753

{

1754

{ "cp1251_koi8" , "cp1251" },

1755

{ "cp1250_latin2" , "cp1250" },

1756

{ "kam_latin2" , "keybcs2" },

1757

{ "mac_latin2" , "MacRoman" },

1758

{ "macce_latin2" , "MacCE" },

1759

{ "pc2_latin2" , "pclatin2" },

1760

{ "vga_latin2" , "pclatin1" },

1761

{ "koi8_cp1251" , "koi8r" },

1762

{ "win1251ukr_koi8_ukr" , "win1251ukr" },

1763

{ "koi8_ukr_win1251ukr" , "koi8u" },

1764

{ NULL , NULL }

1765

};

1766

1767

CHARSET_INFO *get_old_charset_by_name(const char *name)

1768

{

1769

my_old_conv *conv;

1770

1771

for (conv= old_conv; conv->old_name; conv++)

1772

{

1773

if (!my_strcasecmp(&my_charset_latin1, name, conv->old_name))

1774

return get_charset_by_csname(conv->new_name, MY_CS_PRIMARY, MYF(0));

1775

}

1776

return NULL;

1777

}

1778

1779

1780

bool sys_var_collation::check(THD *thd, set_var *var)

1781

{

1782

CHARSET_INFO *tmp;

1620

1783

1621

1784

if (var->value->result_type() == STRING_RESULT)

1622

1785

{

1648

1811

}

1649

1812

1650

1813

1651

bool sys_var_character_set::check(THD *thd __attribute__((unused)),

1652

set_var *var)

1814

bool sys_var_character_set::check(THD *thd, set_var *var)

1653

1815

{

1654

const CHARSET_INFO *tmp;

1816

CHARSET_INFO *tmp;

1655

1817

1656

1818

if (var->value->result_type() == STRING_RESULT)

1657

1819

{

1666

1828

}

1667

1829

tmp= NULL;

1668

1830

}

1669

else if (!(tmp= get_charset_by_csname(res->c_ptr(),MY_CS_PRIMARY,MYF(0))))

1831

else if (!(tmp=get_charset_by_csname(res->c_ptr(),MY_CS_PRIMARY,MYF(0))) &&

1832

!(tmp=get_old_charset_by_name(res->c_ptr())))

1670

1833

{

1671

1834

my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), res->c_ptr());

1672

1835

return 1;

1695

1858

}

1696

1859

1697

1860

1698

unsigned char *sys_var_character_set::value_ptr(THD *thd, enum_var_type type,

1699

LEX_STRING *base __attribute__((unused)))

1700

{

1701

const CHARSET_INFO * const cs= ci_ptr(thd,type)[0];

1702

return cs ? (unsigned char*) cs->csname : (unsigned char*) NULL;

1861

uchar *sys_var_character_set::value_ptr(THD *thd, enum_var_type type,

1862

LEX_STRING *base)

1863

{

1864

CHARSET_INFO *cs= ci_ptr(thd,type)[0];

1865

return cs ? (uchar*) cs->csname : (uchar*) NULL;

1866

}

1867

1868

1869

void sys_var_character_set_sv::set_default(THD *thd, enum_var_type type)

1870

{

1871

if (type == OPT_GLOBAL)

1872

global_system_variables.*offset= *global_default;

1873

else

1874

{

1875

thd->variables.*offset= global_system_variables.*offset;

1876

thd->update_charset();

1877

}

1878

}

1879

CHARSET_INFO **sys_var_character_set_sv::ci_ptr(THD *thd, enum_var_type type)

1880

{

1881

if (type == OPT_GLOBAL)

1882

return &(global_system_variables.*offset);

1883

else

1884

return &(thd->variables.*offset);

1885

}

1886

1887

1888

bool sys_var_character_set_client::check(THD *thd, set_var *var)

1889

{

1890

if (sys_var_character_set_sv::check(thd, var))

1891

return 1;

1892

/* Currently, UCS-2 cannot be used as a client character set */

1893

if (var->save_result.charset->mbminlen > 1)

1894

{

1895

my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), name,

1896

var->save_result.charset->csname);

1897

return 1;

1898

}

1899

return 0;

1900

}

1901

1902

1903

CHARSET_INFO ** sys_var_character_set_database::ci_ptr(THD *thd,

1904

enum_var_type type)

1905

{

1906

if (type == OPT_GLOBAL)

1907

return &global_system_variables.collation_database;

1908

else

1909

return &thd->variables.collation_database;

1910

}

1911

1912

1913

void sys_var_character_set_database::set_default(THD *thd, enum_var_type type)

1914

{

1915

if (type == OPT_GLOBAL)

1916

global_system_variables.collation_database= default_charset_info;

1917

else

1918

{

1919

thd->variables.collation_database= thd->db_charset;

1920

thd->update_charset();

1921

}

1703

1922

}

1704

1923

1705

1924

1728

1947

}

1729

1948

1730

1949

1731

unsigned char *sys_var_collation_sv::value_ptr(THD *thd, enum_var_type type,

1732

LEX_STRING *base __attribute__((unused)))

1950

uchar *sys_var_collation_sv::value_ptr(THD *thd, enum_var_type type,

1951

LEX_STRING *base)

1733

1952

{

1734

const CHARSET_INFO *cs= ((type == OPT_GLOBAL) ?

1953

CHARSET_INFO *cs= ((type == OPT_GLOBAL) ?

1735

1954

global_system_variables.*offset : thd->variables.*offset);

1736

return cs ? (unsigned char*) cs->name : (unsigned char*) "NULL";

1955

return cs ? (uchar*) cs->name : (uchar*) "NULL";

1737

1956

}

1738

1957

1739

1958

1751

1970

}

1752

1971

1753

1972

1754

unsigned char *sys_var_key_cache_param::value_ptr(THD *thd __attribute__((unused)),

1755

enum_var_type type __attribute__((unused)),

1756

LEX_STRING *base __attribute__((unused)))

1973

uchar *sys_var_key_cache_param::value_ptr(THD *thd, enum_var_type type,

1974

LEX_STRING *base)

1757

1975

{

1758

1976

KEY_CACHE *key_cache= get_key_cache(base);

1759

1977

if (!key_cache)

1760

1978

key_cache= &zero_key_cache;

1761

return (unsigned char*) key_cache + offset ;

1979

return (uchar*) key_cache + offset ;

1762

1980

}

1763

1981

1764

1982

1765

1983

bool sys_var_key_buffer_size::update(THD *thd, set_var *var)

1766

1984

{

1767

uint64_t tmp= var->save_result.uint64_t_value;

1985

ulonglong tmp= var->save_result.ulonglong_value;

1768

1986

LEX_STRING *base_name= &var->base;

1769

1987

KEY_CACHE *key_cache;

1770

1988

bool error= 0;

1800

2018

{

1801

2019

if (key_cache == dflt_key_cache)

1802

2020

{

1803

push_warning_printf(thd, DRIZZLE_ERROR::WARN_LEVEL_WARN,

2021

push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,

1804

2022

ER_WARN_CANT_DROP_DEFAULT_KEYCACHE,

1805

2023

ER(ER_WARN_CANT_DROP_DEFAULT_KEYCACHE));

1806

2024

goto end; // Ignore default key cache

1829

2047

}

1830

2048

1831

2049

key_cache->param_buff_size=

1832

(uint64_t) fix_unsigned(thd, tmp, option_limits);

2050

(ulonglong) fix_unsigned(thd, tmp, option_limits);

1833

2051

1834

2052

/* If key cache didn't existed initialize it, else resize it */

1835

2053

key_cache->in_init= 1;

1904

2122

}

1905

2123

1906

2124

1907

bool sys_var_log_state::update(THD *thd __attribute__((unused)), set_var *var)

2125

bool sys_var_log_state::update(THD *thd, set_var *var)

1908

2126

{

1909

2127

bool res;

1910

2128

pthread_mutex_lock(&LOCK_global_system_variables);

1911

2129

if (!var->save_result.ulong_value)

2130

{

2131

logger.deactivate_log_handler(thd, log_type);

1912

2132

res= false;

2133

}

1913

2134

else

1914

res= true;

2135

res= logger.activate_log_handler(thd, log_type);

1915

2136

pthread_mutex_unlock(&LOCK_global_system_variables);

1916

2137

return res;

1917

2138

}

1918

2139

1919

void sys_var_log_state::set_default(THD *thd __attribute__((unused)),

1920

enum_var_type type __attribute__((unused)))

1921

{

1922

}

1923

1924

1925

bool update_sys_var_str_path(THD *thd __attribute__((unused)),

1926

sys_var_str *var_str,

1927

set_var *var, const char *log_ext,

1928

bool log_state, uint32_t log_type)

1929

{

2140

void sys_var_log_state::set_default(THD *thd, enum_var_type type)

2141

{

2142

pthread_mutex_lock(&LOCK_global_system_variables);

2143

logger.deactivate_log_handler(thd, log_type);

2144

pthread_mutex_unlock(&LOCK_global_system_variables);

2145

}

2146

2147

2148

static int sys_check_log_path(THD *thd, set_var *var)

2149

{

2150

char path[FN_REFLEN], buff[FN_REFLEN];

2151

struct stat f_stat;

2152

String str(buff, sizeof(buff), system_charset_info), *res;

2153

const char *log_file_str;

2154

size_t path_length;

2155

2156

if (!(res= var->value->val_str(&str)))

2157

goto err;

2158

2159

log_file_str= res->c_ptr();

2160

bzero(&f_stat, sizeof(struct stat));

2161

2162

path_length= unpack_filename(path, log_file_str);

2163

2164

if (!path_length)

2165

{

2166

/* File name is empty. */

2167

2168

goto err;

2169

}

2170

2171

if (!stat(path, &f_stat))

2172

{

2173

2174

A file system object exists. Check if argument is a file and we have

2175

'write' permission.

2176

2177

2178

if (!MY_S_ISREG(f_stat.st_mode) ||

2179

!(f_stat.st_mode & MY_S_IWRITE))

2180

goto err;

2181

2182

return 0;

2183

}

2184

2185

/* Get dirname of the file path. */

2186

(void) dirname_part(path, log_file_str, &path_length);

2187

2188

/* Dirname is empty if file path is relative. */

2189

if (!path_length)

2190

return 0;

2191

2192

2193

Check if directory exists and we have permission to create file and

2194

write to file.

2195

2196

if (my_access(path, (F_OK|W_OK)))

2197

goto err;

2198

2199

return 0;

2200

2201

err:

2202

my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), var->var->name,

2203

res ? log_file_str : "NULL");

2204

return 1;

2205

}

2206

2207

2208

bool update_sys_var_str_path(THD *thd, sys_var_str *var_str,

2209

set_var *var, const char *log_ext,

2210

bool log_state, uint log_type)

2211

{

2212

MYSQL_QUERY_LOG *file_log;

1930

2213

char buff[FN_REFLEN];

1931

2214

char *res= 0, *old_value=(char *)(var ? var->value->str_value.ptr() : 0);

1932

2215

bool result= 0;

1933

uint32_t str_length= (var ? var->value->str_value.length() : 0);

2216

uint str_length= (var ? var->value->str_value.length() : 0);

1934

2217

1935

2218

switch (log_type) {

2219

case QUERY_LOG_SLOW:

2220

file_log= logger.get_slow_log_file_handler();

2221

break;

2222

case QUERY_LOG_GENERAL:

2223

file_log= logger.get_log_file_handler();

2224

break;

1936

2225

default:

1937

2226

assert(0); // Impossible

1938

2227

}

1951

2240

pthread_mutex_lock(&LOCK_global_system_variables);

1952

2241

logger.lock_exclusive();

1953

2242

2243

if (file_log && log_state)

2244

file_log->close(0);

1954

2245

old_value= var_str->value;

1955

2246

var_str->value= res;

1956

2247

var_str->value_length= str_length;

1957

free(old_value);

1958

if (log_state)

2248

my_free(old_value, MYF(MY_ALLOW_ZERO_PTR));

2249

if (file_log && log_state)

1959

2250

{

1960

2251

switch (log_type) {

2252

case QUERY_LOG_SLOW:

2253

file_log->open_slow_log(sys_var_slow_log_path.value);

2254

break;

2255

case QUERY_LOG_GENERAL:

2256

file_log->open_query_log(sys_var_general_log_path.value);

2257

break;

1961

2258

default:

1962

assert(0);

2259

DBUG_ASSERT(0);

1963

2260

}

1964

2261

}

1965

2262

1971

2268

}

1972

2269

1973

2270

1974

bool sys_var_log_output::update(THD *thd __attribute__((unused)),

1975

set_var *var)

2271

static bool sys_update_general_log_path(THD *thd, set_var * var)

2272

{

2273

return update_sys_var_str_path(thd, &sys_var_general_log_path,

2274

var, ".log", opt_log, QUERY_LOG_GENERAL);

2275

}

2276

2277

2278

static void sys_default_general_log_path(THD *thd, enum_var_type type)

2279

{

2280

(void) update_sys_var_str_path(thd, &sys_var_general_log_path,

2281

0, ".log", opt_log, QUERY_LOG_GENERAL);

2282

}

2283

2284

2285

static bool sys_update_slow_log_path(THD *thd, set_var * var)

2286

{

2287

return update_sys_var_str_path(thd, &sys_var_slow_log_path,

2288

var, "-slow.log", opt_slow_log,

2289

QUERY_LOG_SLOW);

2290

}

2291

2292

2293

static void sys_default_slow_log_path(THD *thd, enum_var_type type)

2294

{

2295

(void) update_sys_var_str_path(thd, &sys_var_slow_log_path,

2296

0, "-slow.log", opt_slow_log,

2297

QUERY_LOG_SLOW);

2298

}

2299

2300

2301

bool sys_var_log_output::update(THD *thd, set_var *var)

1976

2302

{

1977

2303

pthread_mutex_lock(&LOCK_global_system_variables);

1978

2304

logger.lock_exclusive();

2305

logger.init_slow_log(var->save_result.ulong_value);

2306

logger.init_general_log(var->save_result.ulong_value);

1979

2307

*value= var->save_result.ulong_value;

1980

2308

logger.unlock();

1981

2309

pthread_mutex_unlock(&LOCK_global_system_variables);

1983

2311

}

1984

2312

1985

2313

1986

void sys_var_log_output::set_default(THD *thd __attribute__((unused)),

1987

enum_var_type type __attribute__((unused)))

2314

void sys_var_log_output::set_default(THD *thd, enum_var_type type)

1988

2315

{

1989

2316

pthread_mutex_lock(&LOCK_global_system_variables);

1990

2317

logger.lock_exclusive();

2318

logger.init_slow_log(LOG_FILE);

2319

logger.init_general_log(LOG_FILE);

1991

2320

*value= LOG_FILE;

1992

2321

logger.unlock();

1993

2322

pthread_mutex_unlock(&LOCK_global_system_variables);

1994

2323

}

1995

2324

1996

2325

1997

unsigned char *sys_var_log_output::value_ptr(THD *thd,

1998

enum_var_type type __attribute__((unused)),

1999

LEX_STRING *base __attribute__((unused)))

2326

uchar *sys_var_log_output::value_ptr(THD *thd, enum_var_type type,

2327

LEX_STRING *base)

2000

2328

{

2001

2329

char buff[256];

2002

String tmp(buff, sizeof(buff), &my_charset_utf8_general_ci);

2330

String tmp(buff, sizeof(buff), &my_charset_latin1);

2003

2331

ulong length;

2004

2332

ulong val= *value;

2005

2333

2006

2334

tmp.length(0);

2007

for (uint32_t i= 0; val; val>>= 1, i++)

2335

for (uint i= 0; val; val>>= 1, i++)

2008

2336

{

2009

2337

if (val & 1)

2010

2338

{

2016

2344

2017

2345

if ((length= tmp.length()))

2018

2346

length--;

2019

return (unsigned char*) thd->strmake(tmp.ptr(), length);

2347

return (uchar*) thd->strmake(tmp.ptr(), length);

2020

2348

}

2021

2349

2022

2350

2024

2352

Functions to handle SET NAMES and SET CHARACTER SET

2025

2353

*****************************************************************************/

2026

2354

2027

int set_var_collation_client::check(THD *thd __attribute__((unused)))

2355

int set_var_collation_client::check(THD *thd)

2028

2356

{

2029

2357

/* Currently, UCS-2 cannot be used as a client character set */

2030

2358

if (character_set_client->mbminlen > 1)

2050

2378

2051

2379

bool sys_var_timestamp::update(THD *thd, set_var *var)

2052

2380

{

2053

thd->set_time((time_t) var->save_result.uint64_t_value);

2381

thd->set_time((time_t) var->save_result.ulonglong_value);

2054

2382

return 0;

2055

2383

}

2056

2384

2057

2385

2058

void sys_var_timestamp::set_default(THD *thd,

2059

enum_var_type type __attribute__((unused)))

2386

void sys_var_timestamp::set_default(THD *thd, enum_var_type type)

2060

2387

{

2061

2388

thd->user_time=0;

2062

2389

}

2063

2390

2064

2391

2065

unsigned char *sys_var_timestamp::value_ptr(THD *thd,

2066

enum_var_type type __attribute__((unused)),

2067

LEX_STRING *base __attribute__((unused)))

2392

uchar *sys_var_timestamp::value_ptr(THD *thd, enum_var_type type,

2393

LEX_STRING *base)

2068

2394

{

2069

2395

thd->sys_var_tmp.long_value= (long) thd->start_time;

2070

return (unsigned char*) &thd->sys_var_tmp.long_value;

2396

return (uchar*) &thd->sys_var_tmp.long_value;

2071

2397

}

2072

2398

2073

2399

2074

2400

bool sys_var_last_insert_id::update(THD *thd, set_var *var)

2075

2401

{

2076

thd->first_successful_insert_id_in_prev_stmt=

2077

var->save_result.uint64_t_value;

2402

thd->first_successful_insert_id_in_prev_stmt=

2403

var->save_result.ulonglong_value;

2078

2404

return 0;

2079

2405

}

2080

2406

2081

2407

2082

unsigned char *sys_var_last_insert_id::value_ptr(THD *thd,

2083

enum_var_type type __attribute__((unused)),

2084

LEX_STRING *base __attribute__((unused)))

2408

uchar *sys_var_last_insert_id::value_ptr(THD *thd, enum_var_type type,

2409

LEX_STRING *base)

2085

2410

{

2086

2411

2087

this tmp var makes it robust againt change of type of

2412

this tmp var makes it robust againt change of type of

2088

2413

read_first_successful_insert_id_in_prev_stmt().

2089

2414

2090

thd->sys_var_tmp.uint64_t_value=

2415

thd->sys_var_tmp.ulonglong_value=

2091

2416

thd->read_first_successful_insert_id_in_prev_stmt();

2092

return (unsigned char*) &thd->sys_var_tmp.uint64_t_value;

2417

return (uchar*) &thd->sys_var_tmp.ulonglong_value;

2093

2418

}

2094

2419

2095

2420

2096

2421

bool sys_var_insert_id::update(THD *thd, set_var *var)

2097

2422

{

2098

thd->force_one_auto_inc_interval(var->save_result.uint64_t_value);

2423

thd->force_one_auto_inc_interval(var->save_result.ulonglong_value);

2099

2424

return 0;

2100

2425

}

2101

2426

2102

2427

2103

unsigned char *sys_var_insert_id::value_ptr(THD *thd,

2104

enum_var_type type __attribute__((unused)),

2105

LEX_STRING *base __attribute__((unused)))

2428

uchar *sys_var_insert_id::value_ptr(THD *thd, enum_var_type type,

2429

LEX_STRING *base)

2106

2430

{

2107

thd->sys_var_tmp.uint64_t_value=

2431

thd->sys_var_tmp.ulonglong_value=

2108

2432

thd->auto_inc_intervals_forced.minimum();

2109

return (unsigned char*) &thd->sys_var_tmp.uint64_t_value;

2433

return (uchar*) &thd->sys_var_tmp.ulonglong_value;

2110

2434

}

2111

2435

2112

2436

2113

2437

bool sys_var_rand_seed1::update(THD *thd, set_var *var)

2114

2438

{

2115

thd->rand.seed1= (ulong) var->save_result.uint64_t_value;

2439

thd->rand.seed1= (ulong) var->save_result.ulonglong_value;

2116

2440

return 0;

2117

2441

}

2118

2442

2119

2443

bool sys_var_rand_seed2::update(THD *thd, set_var *var)

2120

2444

{

2121

thd->rand.seed2= (ulong) var->save_result.uint64_t_value;

2445

thd->rand.seed2= (ulong) var->save_result.ulonglong_value;

2122

2446

return 0;

2123

2447

}

2124

2448

2126

2450

bool sys_var_thd_time_zone::check(THD *thd, set_var *var)

2127

2451

{

2128

2452

char buff[MAX_TIME_ZONE_NAME_LENGTH];

2129

String str(buff, sizeof(buff), &my_charset_utf8_general_ci);

2453

String str(buff, sizeof(buff), &my_charset_latin1);

2130

2454

String *res= var->value->val_str(&str);

2131

2455

2132

2456

if (!(var->save_result.time_zone= my_tz_find(thd, res)))

2153

2477

}

2154

2478

2155

2479

2156

unsigned char *sys_var_thd_time_zone::value_ptr(THD *thd, enum_var_type type,

2157

LEX_STRING *base __attribute__((unused)))

2480

uchar *sys_var_thd_time_zone::value_ptr(THD *thd, enum_var_type type,

2481

LEX_STRING *base)

2158

2482

{

2159

2483

2160

2484

We can use ptr() instead of c_ptr() here because String contaning

2161

2485

time zone name is guaranteed to be zero ended.

2162

2486

2163

2487

if (type == OPT_GLOBAL)

2164

return (unsigned char *)(global_system_variables.time_zone->get_name()->ptr());

2488

return (uchar *)(global_system_variables.time_zone->get_name()->ptr());

2165

2489

else

2166

2490

{

2167

2491

2173

2497

(binlog code stores session value only).

2174

2498

2175

2499

thd->time_zone_used= 1;

2176

return (unsigned char *)(thd->variables.time_zone->get_name()->ptr());

2500

return (uchar *)(thd->variables.time_zone->get_name()->ptr());

2177

2501

}

2178

2502

}

2179

2503

2185

2509

{

2186

2510

if (default_tz_name)

2187

2511

{

2188

String str(default_tz_name, &my_charset_utf8_general_ci);

2512

String str(default_tz_name, &my_charset_latin1);

2189

2513

2190

2514

We are guaranteed to find this time zone since its existence

2191

2515

is checked during start-up.

2212

2536

May be we should have a separate error message for this?

2213

2537

2214

2538

my_error(ER_GLOBAL_VARIABLE, MYF(0), name);

2215

return true;

2539

return TRUE;

2216

2540

}

2217

2541

}

2218

2542

2219

bool sys_var_max_user_conn::update(THD *thd __attribute__((unused)),

2220

set_var *var)

2543

bool sys_var_max_user_conn::update(THD *thd, set_var *var)

2221

2544

{

2222

assert(var->type == OPT_GLOBAL);

2545

DBUG_ASSERT(var->type == OPT_GLOBAL);

2223

2546

pthread_mutex_lock(&LOCK_global_system_variables);

2224

max_user_connections= (uint)var->save_result.uint64_t_value;

2547

max_user_connections= (uint)var->save_result.ulonglong_value;

2225

2548

pthread_mutex_unlock(&LOCK_global_system_variables);

2226

2549

return 0;

2227

2550

}

2228

2551

2229

2552

2230

void sys_var_max_user_conn::set_default(THD *thd __attribute__((unused)),

2231

enum_var_type type __attribute__((unused)))

2553

void sys_var_max_user_conn::set_default(THD *thd, enum_var_type type)

2232

2554

{

2233

assert(type == OPT_GLOBAL);

2555

DBUG_ASSERT(type == OPT_GLOBAL);

2234

2556

pthread_mutex_lock(&LOCK_global_system_variables);

2235

2557

max_user_connections= (ulong) option_limits->def_value;

2236

2558

pthread_mutex_unlock(&LOCK_global_system_variables);

2237

2559

}

2238

2560

2239

2561

2240

unsigned char *sys_var_max_user_conn::value_ptr(THD *thd, enum_var_type type,

2241

LEX_STRING *base __attribute__((unused)))

2562

uchar *sys_var_max_user_conn::value_ptr(THD *thd, enum_var_type type,

2563

LEX_STRING *base)

2242

2564

{

2243

2565

if (type != OPT_GLOBAL &&

2244

2566

thd->user_connect && thd->user_connect->user_resources.user_conn)

2245

return (unsigned char*) &(thd->user_connect->user_resources.user_conn);

2246

return (unsigned char*) &(max_user_connections);

2567

return (uchar*) &(thd->user_connect->user_resources.user_conn);

2568

return (uchar*) &(max_user_connections);

2247

2569

}

2248

2570

2249

2571

2250

bool sys_var_thd_lc_time_names::check(THD *thd __attribute__((unused)),

2251

set_var *var)

2572

bool sys_var_thd_lc_time_names::check(THD *thd, set_var *var)

2252

2573

{

2253

2574

MY_LOCALE *locale_match;

2254

2575

2265

2586

else // STRING_RESULT

2266

2587

{

2267

2588

char buff[6];

2268

String str(buff, sizeof(buff), &my_charset_utf8_general_ci), *res;

2589

String str(buff, sizeof(buff), &my_charset_latin1), *res;

2269

2590

if (!(res=var->value->val_str(&str)))

2270

2591

{

2271

2592

my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), name, "NULL");

2295

2616

}

2296

2617

2297

2618

2298

unsigned char *sys_var_thd_lc_time_names::value_ptr(THD *thd,

2299

enum_var_type type,

2300

LEX_STRING *base __attribute__((unused)))

2619

uchar *sys_var_thd_lc_time_names::value_ptr(THD *thd, enum_var_type type,

2620

LEX_STRING *base)

2301

2621

{

2302

2622

return type == OPT_GLOBAL ?

2303

(unsigned char *) global_system_variables.lc_time_names->name :

2304

(unsigned char *) thd->variables.lc_time_names->name;

2623

(uchar *) global_system_variables.lc_time_names->name :

2624

(uchar *) thd->variables.lc_time_names->name;

2305

2625

}

2306

2626

2307

2627

2318

2638

2319

2639

NOTES

2320

2640

The argument to long query time is in seconds in decimal

2321

which is converted to uint64_t integer holding microseconds for storage.

2641

which is converted to ulonglong integer holding microseconds for storage.

2322

2642

This is used for handling long_query_time

2323

2643

2324

2644

2325

2645

bool sys_var_microseconds::update(THD *thd, set_var *var)

2326

2646

{

2327

2647

double num= var->value->val_real();

2328

int64_t microseconds;

2648

longlong microseconds;

2329

2649

if (num > (double) option_limits->max_value)

2330

2650

num= (double) option_limits->max_value;

2331

2651

if (num < (double) option_limits->min_value)

2332

2652

num= (double) option_limits->min_value;

2333

microseconds= (int64_t) (num * 1000000.0 + 0.5);

2653

microseconds= (longlong) (num * 1000000.0 + 0.5);

2334

2654

if (var->type == OPT_GLOBAL)

2335

2655

{

2336

2656

pthread_mutex_lock(&LOCK_global_system_variables);

2345

2665

2346

2666

void sys_var_microseconds::set_default(THD *thd, enum_var_type type)

2347

2667

{

2348

int64_t microseconds= (int64_t) (option_limits->def_value * 1000000.0);

2668

longlong microseconds= (longlong) (option_limits->def_value * 1000000.0);

2349

2669

if (type == OPT_GLOBAL)

2350

2670

{

2351

2671

pthread_mutex_lock(&LOCK_global_system_variables);

2357

2677

}

2358

2678

2359

2679

2360

unsigned char *sys_var_microseconds::value_ptr(THD *thd, enum_var_type type,

2361

LEX_STRING *base __attribute__((unused)))

2680

uchar *sys_var_microseconds::value_ptr(THD *thd, enum_var_type type,

2681

LEX_STRING *base)

2362

2682

{

2363

2683

thd->tmp_double_value= (double) ((type == OPT_GLOBAL) ?

2364

2684

global_system_variables.*offset :

2365

2685

thd->variables.*offset) / 1000000.0;

2366

return (unsigned char*) &thd->tmp_double_value;

2686

return (uchar*) &thd->tmp_double_value;

2367

2687

}

2368

2688

2369

2689

2386

2706

{

2387

2707

/* The test is negative as the flag we use is NOT autocommit */

2388

2708

2389

uint64_t org_options= thd->options;

2709

ulonglong org_options= thd->options;

2390

2710

2391

2711

if (var->save_result.ulong_value != 0)

2392

2712

thd->options&= ~((sys_var_thd_bit*) var->var)->bit_flag;

2398

2718

if ((org_options & OPTION_NOT_AUTOCOMMIT))

2399

2719

{

2400

2720

/* We changed to auto_commit mode */

2401

thd->options&= ~(uint64_t) (OPTION_BEGIN | OPTION_KEEP_LOG);

2402

thd->transaction.all.modified_non_trans_table= false;

2721

thd->options&= ~(ulonglong) (OPTION_BEGIN | OPTION_KEEP_LOG);

2722

thd->transaction.all.modified_non_trans_table= FALSE;

2403

2723

thd->server_status|= SERVER_STATUS_AUTOCOMMIT;

2404

2724

if (ha_commit(thd))

2405

2725

return 1;

2406

2726

}

2407

2727

else

2408

2728

{

2409

thd->transaction.all.modified_non_trans_table= false;

2729

thd->transaction.all.modified_non_trans_table= FALSE;

2410

2730

thd->server_status&= ~SERVER_STATUS_AUTOCOMMIT;

2411

2731

}

2412

2732

}

2413

2733

return 0;

2414

2734

}

2415

2735

2416

static int check_log_update(THD *thd __attribute__((unused)),

2417

set_var *var __attribute__((unused)))

2418

{

2419

return 0;

2420

}

2421

2422

2423

static int check_pseudo_thread_id(THD *thd __attribute__((unused)),

2424

set_var *var)

2425

{

2426

var->save_result.uint64_t_value= var->value->val_int();

2427

return 0;

2428

}

2429

2430

static unsigned char *get_warning_count(THD *thd)

2736

static int check_log_update(THD *thd, set_var *var)

2737

{

2738

return 0;

2739

}

2740

2741

static bool set_log_update(THD *thd, set_var *var)

2742

{

2743

2744

The update log is not supported anymore since 5.0.

2745

See sql/mysqld.cc/, comments in function init_server_components() for an

2746

explaination of the different warnings we send below

2747

2748

2749

if (opt_sql_bin_update)

2750

{

2751

push_warning(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,

2752

ER_UPDATE_LOG_DEPRECATED_TRANSLATED,

2753

ER(ER_UPDATE_LOG_DEPRECATED_TRANSLATED));

2754

}

2755

else

2756

push_warning(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,

2757

ER_UPDATE_LOG_DEPRECATED_IGNORED,

2758

ER(ER_UPDATE_LOG_DEPRECATED_IGNORED));

2759

set_option_bit(thd, var);

2760

return 0;

2761

}

2762

2763

2764

static int check_pseudo_thread_id(THD *thd, set_var *var)

2765

{

2766

var->save_result.ulonglong_value= var->value->val_int();

2767

return 0;

2768

}

2769

2770

static uchar *get_warning_count(THD *thd)

2431

2771

{

2432

2772

thd->sys_var_tmp.long_value=

2433

(thd->warn_count[(uint) DRIZZLE_ERROR::WARN_LEVEL_NOTE] +

2434

thd->warn_count[(uint) DRIZZLE_ERROR::WARN_LEVEL_ERROR] +

2435

thd->warn_count[(uint) DRIZZLE_ERROR::WARN_LEVEL_WARN]);

2436

return (unsigned char*) &thd->sys_var_tmp.long_value;

2773

(thd->warn_count[(uint) MYSQL_ERROR::WARN_LEVEL_NOTE] +

2774

thd->warn_count[(uint) MYSQL_ERROR::WARN_LEVEL_ERROR] +

2775

thd->warn_count[(uint) MYSQL_ERROR::WARN_LEVEL_WARN]);

2776

return (uchar*) &thd->sys_var_tmp.long_value;

2437

2777

}

2438

2778

2439

static unsigned char *get_error_count(THD *thd)

2779

static uchar *get_error_count(THD *thd)

2440

2780

{

2441

2781

thd->sys_var_tmp.long_value=

2442

thd->warn_count[(uint) DRIZZLE_ERROR::WARN_LEVEL_ERROR];

2443

return (unsigned char*) &thd->sys_var_tmp.long_value;

2782

thd->warn_count[(uint) MYSQL_ERROR::WARN_LEVEL_ERROR];

2783

return (uchar*) &thd->sys_var_tmp.long_value;

2444

2784

}

2445

2785

2446

2786

2458

2798

@retval

2459

2799

ptr pointer to NUL-terminated string

2460

2800

2461

static unsigned char *get_tmpdir(THD *thd __attribute__((unused)))

2801

static uchar *get_tmpdir(THD *thd)

2462

2802

{

2463

2803

if (opt_mysql_tmpdir)

2464

return (unsigned char *)opt_mysql_tmpdir;

2465

return (unsigned char*)mysql_tmpdir;

2804

return (uchar *)opt_mysql_tmpdir;

2805

return (uchar*)mysql_tmpdir;

2466

2806

}

2467

2807

2468

2808

/****************************************************************************

2487

2827

2488

2828

static struct my_option *find_option(struct my_option *opt, const char *name)

2489

2829

{

2490

uint32_t length=strlen(name);

2830

uint length=strlen(name);

2491

2831

for (; opt->name; opt++)

2492

2832

{

2493

2833

if (!getopt_compare_strings(opt->name, name, length) &&

2508

2848

Return variable name and length for hashing of variables.

2509

2849

2510

2850

2511

static unsigned char *get_sys_var_length(const sys_var *var, size_t *length,

2512

bool first __attribute__((unused)))

2851

static uchar *get_sys_var_length(const sys_var *var, size_t *length,

2852

my_bool first)

2513

2853

{

2514

2854

*length= var->name_length;

2515

return (unsigned char*) var->name;

2855

return (uchar*) var->name;

2516

2856

}

2517

2857

2518

2858

2540

2880

{

2541

2881

var->name_length= strlen(var->name);

2542

2882

/* this fails if there is a conflicting variable name. see HASH_UNIQUE */

2543

if (my_hash_insert(&system_variable_hash, (unsigned char*) var))

2883

if (my_hash_insert(&system_variable_hash, (uchar*) var))

2544

2884

goto error;

2545

2885

if (long_options)

2546

2886

var->option_limits= find_option(long_options, var->name);

2549

2889

2550

2890

error:

2551

2891

for (; first != var; first= first->next)

2552

hash_delete(&system_variable_hash, (unsigned char*) first);

2892

hash_delete(&system_variable_hash, (uchar*) first);

2553

2893

return 1;

2554

2894

}

2555

2895

2573

2913

/* A write lock should be held on LOCK_system_variables_hash */

2574

2914

2575

2915

for (sys_var *var= first; var; var= var->next)

2576

result|= hash_delete(&system_variable_hash, (unsigned char*) var);

2916

result|= hash_delete(&system_variable_hash, (uchar*) var);

2577

2917

2578

2918

return result;

2579

2919

}

2625

2965

(qsort_cmp) show_cmp);

2626

2966

2627

2967

/* make last element empty */

2628

memset(show, 0, sizeof(SHOW_VAR));

2968

bzero(show, sizeof(SHOW_VAR));

2629

2969

}

2630

2970

return result;

2631

2971

}

2644

2984

2645

2985

int set_var_init()

2646

2986

{

2647

uint32_t count= 0;

2987

uint count= 0;

2988

DBUG_ENTER("set_var_init");

2648

2989

2649

2990

for (sys_var *var=vars.first; var; var= var->next, count++) {};

2650

2991

2663

3004

if (mysql_add_sys_var_chain(vars.first, my_long_options))

2664

3005

goto error;

2665

3006

2666

return(0);

3007

3008

Special cases

3009

Needed because MySQL can't find the limits for a variable it it has

3010

a different name than the command line option.

3011

As these variables are deprecated, this code will disappear soon...

3012

3013

sys_sql_max_join_size.option_limits= sys_max_join_size.option_limits;

3014

3015

DBUG_RETURN(0);

2667

3016

2668

3017

error:

2669

3018

fprintf(stderr, "failed to initialize system variables");

2670

return(1);

3019

DBUG_RETURN(1);

2671

3020

}

2672

3021

2673

3022

2690

3039

0 SUCCESS

2691

3040

otherwise FAILURE

2692

3041

2693

int mysql_append_static_vars(const SHOW_VAR *show_vars, uint32_t count)

3042

int mysql_append_static_vars(const SHOW_VAR *show_vars, uint count)

2694

3043

{

2695

3044

for (; count > 0; count--, show_vars++)

2696

if (insert_dynamic(&fixed_show_vars, (unsigned char*) show_vars))

3045

if (insert_dynamic(&fixed_show_vars, (uchar*) show_vars))

2697

3046

return 1;

2698

3047

return 0;

2699

3048

}

2713

3062

0 Unknown variable (error message is given)

2714

3063

2715

3064

2716

sys_var *intern_find_sys_var(const char *str, uint32_t length, bool no_error)

3065

sys_var *intern_find_sys_var(const char *str, uint length, bool no_error)

2717

3066

{

2718

3067

sys_var *var;

2719

3068

2722

3071

A lock on LOCK_system_variable_hash should be held

2723

3072

2724

3073

var= (sys_var*) hash_search(&system_variable_hash,

2725

(unsigned char*) str, length ? length : strlen(str));

3074

(uchar*) str, length ? length : strlen(str));

2726

3075

if (!(var || no_error))

2727

3076

my_error(ER_UNKNOWN_SYSTEM_VARIABLE, MYF(0), (char*) str);

2728

3077

2754

3103

{

2755

3104

int error;

2756

3105

List_iterator_fast<set_var_base> it(*var_list);

3106

DBUG_ENTER("sql_set_variables");

2757

3107

2758

3108

set_var_base *var;

2759

3109

while ((var=it++))

2770

3120

2771

3121

err:

2772

3122

free_underlaid_joins(thd, &thd->lex->select_lex);

2773

return(error);

3123

DBUG_RETURN(error);

2774

3124

}

2775

3125

2776

3126

2881

3231

}

2882

3232

2883

3233

2884

int set_var_user::update(THD *thd __attribute__((unused)))

3234

int set_var_user::update(THD *thd)

2885

3235

{

2886

3236

if (user_var_item->update())

2887

3237

{

2902

3252

{

2903

3253

char buff[STRING_BUFFER_USUAL_SIZE];

2904

3254

const char *value;

2905

String str(buff, sizeof(buff), &my_charset_utf8_general_ci), *res;

3255

String str(buff, sizeof(buff), &my_charset_latin1), *res;

2906

3256

2907

3257

var->save_result.plugin= NULL;

2908

3258

if (var->value->result_type() == STRING_RESULT)

2913

3263

!(engine_name.str= (char *)res->ptr()) ||

2914

3264

!(engine_name.length= res->length()) ||

2915

3265

!(var->save_result.plugin= ha_resolve_by_name(thd, &engine_name)) ||

2916

!(hton= plugin_data(var->save_result.plugin, handlerton *)))

3266

!(hton= plugin_data(var->save_result.plugin, handlerton *)) ||

3267

ha_checktype(thd, ha_legacy_type(hton), 1, 0) != hton)

2917

3268

{

2918

3269

value= res ? res->c_ptr() : "NULL";

2919

3270

goto err;

2928

3279

}

2929

3280

2930

3281

2931

unsigned char *sys_var_thd_storage_engine::value_ptr(THD *thd, enum_var_type type,

2932

LEX_STRING *base __attribute__((unused)))

3282

uchar *sys_var_thd_storage_engine::value_ptr(THD *thd, enum_var_type type,

3283

LEX_STRING *base)

2933

3284

{

2934

unsigned char* result;

3285

uchar* result;

2935

3286

handlerton *hton;

2936

3287

LEX_STRING *engine_name;

2937

3288

plugin_ref plugin= thd->variables.*offset;

2939

3290

plugin= my_plugin_lock(thd, &(global_system_variables.*offset));

2940

3291

hton= plugin_data(plugin, handlerton*);

2941

3292

engine_name= &hton2plugin[hton->slot]->name;

2942

result= (unsigned char *) thd->strmake(engine_name->str, engine_name->length);

3293

result= (uchar *) thd->strmake(engine_name->str, engine_name->length);

2943

3294

if (type == OPT_GLOBAL)

2944

3295

plugin_unlock(thd, plugin);

2945

3296

return result;

2959

3310

value= &(thd->variables.*offset);

2960

3311

new_value= my_plugin_lock(NULL, &(global_system_variables.*offset));

2961

3312

}

2962

assert(new_value);

3313

DBUG_ASSERT(new_value);

2963

3314

old_value= *value;

2964

3315

*value= new_value;

2965

3316

plugin_unlock(NULL, old_value);

2982

3333

2983

3334

bool

2984

3335

sys_var_thd_optimizer_switch::

2985

symbolic_mode_representation(THD *thd, uint64_t val, LEX_STRING *rep)

3336

symbolic_mode_representation(THD *thd, ulonglong val, LEX_STRING *rep)

2986

3337

{

2987

3338

char buff[STRING_BUFFER_USUAL_SIZE*8];

2988

String tmp(buff, sizeof(buff), &my_charset_utf8_general_ci);

3339

String tmp(buff, sizeof(buff), &my_charset_latin1);

2989

3340

2990

3341

tmp.length(0);

2991

3342

2992

for (uint32_t i= 0; val; val>>= 1, i++)

3343

for (uint i= 0; val; val>>= 1, i++)

2993

3344

{

2994

3345

if (val & 1)

2995

3346

{

3010

3361

}

3011

3362

3012

3363

3013

unsigned char *sys_var_thd_optimizer_switch::value_ptr(THD *thd, enum_var_type type,

3014

LEX_STRING *base __attribute__((unused)))

3364

uchar *sys_var_thd_optimizer_switch::value_ptr(THD *thd, enum_var_type type,

3365

LEX_STRING *base)

3015

3366

{

3016

3367

LEX_STRING opts;

3017

uint64_t val= ((type == OPT_GLOBAL) ? global_system_variables.*offset :

3368

ulonglong val= ((type == OPT_GLOBAL) ? global_system_variables.*offset :

3018

3369

thd->variables.*offset);

3019

3370

(void) symbolic_mode_representation(thd, val, &opts);

3020

return (unsigned char *) opts.str;

3371

return (uchar *) opts.str;

3021

3372

}

3022

3373

3023

3374

3034

3385

Named list handling

3035

3386

****************************************************************************/

3036

3387

3037

unsigned char* find_named(I_List<NAMED_LIST> *list, const char *name, uint32_t length,

3388

uchar* find_named(I_List<NAMED_LIST> *list, const char *name, uint length,

3038

3389

NAMED_LIST **found)

3039

3390

{

3040

3391

I_List_iterator<NAMED_LIST> it(*list);

3053

3404

3054

3405

3055

3406

void delete_elements(I_List<NAMED_LIST> *list,

3056

void (*free_element)(const char *name, unsigned char*))

3407

void (*free_element)(const char *name, uchar*))

3057

3408

{

3058

3409

NAMED_LIST *element;

3410

DBUG_ENTER("delete_elements");

3059

3411

while ((element= list->get()))

3060

3412

{

3061

3413

(*free_element)(element->name, element->data);

3062

3414

delete element;

3063

3415

}

3064

return;

3416

DBUG_VOID_RETURN;

3065

3417

}

3066

3418

3067

3419

3068

3420

/* Key cache functions */

3069

3421

3070

static KEY_CACHE *create_key_cache(const char *name, uint32_t length)

3422

static KEY_CACHE *create_key_cache(const char *name, uint length)

3071

3423

{

3072

3424

KEY_CACHE *key_cache;

3425

DBUG_ENTER("create_key_cache");

3426

DBUG_PRINT("enter",("name: %.*s", length, name));

3073

3427

3074

3428

if ((key_cache= (KEY_CACHE*) my_malloc(sizeof(KEY_CACHE),

3075

3429

MYF(MY_ZEROFILL | MY_WME))))

3076

3430

{

3077

if (!new NAMED_LIST(&key_caches, name, length, (unsigned char*) key_cache))

3431

if (!new NAMED_LIST(&key_caches, name, length, (uchar*) key_cache))

3078

3432

{

3079

free((char*) key_cache);

3433

my_free((char*) key_cache, MYF(0));

3080

3434

key_cache= 0;

3081

3435

}

3082

3436

else

3092

3446

key_cache->param_age_threshold= dflt_key_cache_var.param_age_threshold;

3093

3447

}

3094

3448

}

3095

return(key_cache);

3449

DBUG_RETURN(key_cache);

3096

3450

}

3097

3451

3098

3452

3099

KEY_CACHE *get_or_create_key_cache(const char *name, uint32_t length)

3453

KEY_CACHE *get_or_create_key_cache(const char *name, uint length)

3100

3454

{

3101

3455

LEX_STRING key_cache_name;

3102

3456

KEY_CACHE *key_cache;

3111

3465

}

3112

3466

3113

3467

3114

void free_key_cache(const char *name __attribute__((unused)),

3115

KEY_CACHE *key_cache)

3468

void free_key_cache(const char *name, KEY_CACHE *key_cache)

3116

3469

{

3117

3470

ha_end_key_cache(key_cache);

3118

free((char*) key_cache);

3471

my_free((char*) key_cache, MYF(0));

3119

3472

}

3120

3473

3121

3474

3137

3490

{

3138

3491

bool result;

3139

3492

3493

DBUG_ENTER("sys_var_opt_readonly::update");

3494

3140

3495

/* Prevent self dead-lock */

3141

3496

if (thd->locked_tables || thd->active_transaction())

3142

3497

{

3143

3498

my_error(ER_LOCK_OR_ACTIVE_TRANSACTION, MYF(0));

3144

return(true);

3499

DBUG_RETURN(true);

3145

3500

}

3146

3501

3147

3502

if (thd->global_read_lock)

3153

3508

- SET GLOBAL READ_ONLY = 1

3154

3509

3155

3510

result= sys_var_bool_ptr::update(thd, var);

3156

return(result);

3511

DBUG_RETURN(result);

3157

3512

}

3158

3513

3159

3514

3168

3523

3169

3524

3170

3525

if (lock_global_read_lock(thd))

3171

return(true);

3526

DBUG_RETURN(true);

3172

3527

3173

3528

3174

3529

This call will be blocked by any connection holding a READ or WRITE lock.

3179

3534

can cause to wait on a read lock, it's required for the client application

3180

3535

to unlock everything, and acceptable for the server to wait on all locks.

3181

3536

3182

if ((result= close_cached_tables(thd, NULL, false, true, true)) == true)

3537

if ((result= close_cached_tables(thd, NULL, FALSE, TRUE, TRUE)) == true)

3183

3538

goto end_with_read_lock;

3184

3539

3185

3540

if ((result= make_global_read_lock_block_commit(thd)) == true)

3191

3546

end_with_read_lock:

3192

3547

/* Release the lock */

3193

3548

unlock_global_read_lock(thd);

3194

return(result);

3549

DBUG_RETURN(result);

3550

}

3551

3552

bool sys_var_thd_dbug::update(THD *thd, set_var *var)

3553

{

3554

if (var->type == OPT_GLOBAL)

3555

{

3556

DBUG_SET_INITIAL(var ? var->value->str_value.c_ptr() : "");

3557

}

3558

else

3559

{

3560

DBUG_SET(var ? var->value->str_value.c_ptr() : "");

3561

}

3562

3563

return 0;

3564

}

3565

3566

3567

uchar *sys_var_thd_dbug::value_ptr(THD *thd, enum_var_type type, LEX_STRING *b)

3568

{

3569

char buf[256];

3570

if (type == OPT_GLOBAL)

3571

{

3572

DBUG_EXPLAIN_INITIAL(buf, sizeof(buf));

3573

}

3574

else

3575

{

3576

DBUG_EXPLAIN(buf, sizeof(buf));

3577

}

3578

return (uchar*) thd->strdup(buf);

3195

3579

}

3196

3580

3197

3581

/****************************************************************************

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