1#ifndef SYS_VARS_H_INCLUDED
2#define SYS_VARS_H_INCLUDED
58#include "mysqld_error.h"
96template <
typename Struct_type,
typename Name_getter>
98template <
typename T, u
long ARGT, enum enum_mysql_show_type SHOWT,
bool SIGNED>
114#define VALID_RANGE(X, Y) X, Y
116#define BLOCK_SIZE(X) X
117#define GLOBAL_VAR(X) \
118 sys_var::GLOBAL, (((const char *)&(X)) - (char *)&global_system_variables), \
120#define SESSION_VAR(X) \
121 sys_var::SESSION, offsetof(System_variables, X), \
122 sizeof(((System_variables *)0)->X)
123#define SESSION_ONLY(X) \
124 sys_var::ONLY_SESSION, offsetof(System_variables, X), \
125 sizeof(((System_variables *)0)->X)
126#define NO_CMD_LINE CMD_LINE(NO_ARG, -1)
131#define NO_MUTEX_GUARD ((PolyLock *)0)
132#define IN_BINLOG sys_var::SESSION_VARIABLE_IN_BINLOG
133#define NOT_IN_BINLOG sys_var::VARIABLE_NOT_IN_BINLOG
136#define PRE_UPDATE(X) X
137#define ON_UPDATE(X) X
138#define READ_ONLY sys_var::READONLY +
139#define NOT_VISIBLE sys_var::INVISIBLE +
140#define UNTRACKED_DEFAULT sys_var::TRI_LEVEL +
141#define HINT_UPDATEABLE sys_var::HINT_UPDATEABLE +
143#define PREALLOCATED sys_var::ALLOCATED +
144#define NON_PERSIST sys_var::NOTPERSIST +
145#define PERSIST_AS_READONLY sys_var::PERSIST_AS_READ_ONLY +
146#define SENSITIVE sys_var::SENSITIVE +
152#define REVERSE(X) ~(X)
153#define DEPRECATED_VAR(X) X
155#define session_var(THD, TYPE) (*(TYPE *)session_var_ptr(THD))
156#define global_var(TYPE) (*(TYPE *)global_var_ptr())
158#define GET_HA_ROWS GET_ULL
194template <
typename T, u
long ARGT, enum enum_mysql_show_type SHOWT,
bool SIGNED>
198 const char *name_arg,
const char *
comment,
int flag_args,
199 ptrdiff_t off,
size_t size [[maybe_unused]],
CMD_LINE getopt,
200 T min_val, T max_val, T def_val,
uint block_size,
205 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
208 binlog_status_arg, on_check_func, on_update_func,
209 substitute, parse_flag) {
211 if ((min_val % block_size) != 0)
212 min_val += block_size - (min_val % block_size);
222 assert(size ==
sizeof(T));
223 assert(min_val <= def_val);
224 assert(def_val <= max_val);
225 assert(block_size > 0);
227 assert(def_val % block_size == 0);
378 const char *deprecation_substitute_arg,
379 sys_var *persisted_alias,
bool is_persisted_deprecated)
386 persisted_alias, is_persisted_deprecated),
463 std::string_view keycache_name)
override {
467 std::string_view keycache_name)
override {
557 m_comment = std::string(
"This option is deprecated. Use ") +
580 binlog_status_arg, on_check_func, on_update_func, substitute,
595 if (!(res = var->value->val_str(&
str)))
597 else if (!(var->save_result.ulonglong_value =
601 var->save_result.ulonglong_value--;
603 longlong tmp = var->value->val_int();
607 var->save_result.ulonglong_value = tmp;
634 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
635 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
640 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
642 values, def_val,
lock, binlog_status_arg, on_check_func,
643 on_update_func, substitute, parse_flag) {
647 assert(size ==
sizeof(ulong));
669 std::string_view)
override {
670 return pointer_cast<const uchar *>(
687 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
688 size_t size [[maybe_unused]],
CMD_LINE getopt,
bool def_val,
693 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
696 on_check_func, on_update_func, substitute, parse_flag) {
700 assert(size ==
sizeof(
bool));
800 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
801 size_t size [[maybe_unused]],
CMD_LINE getopt,
const ALIAS aliases_arg[],
802 uint value_count_arg,
uint def_val,
uint command_line_no_value_arg,
807 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
810 on_check_func, on_update_func, substitute, parse_flag),
825 assert(size ==
sizeof(ulong));
859 if (value_str ==
nullptr) {
866 if (value != -1)
goto end;
869 value = strtol(value_str, &
end, 10);
871 if (
end > value_str && *
end ==
'\0')
889 if (!res)
return true;
895 &valid_len, &len_error))
899 if (value == -1)
return true;
1010 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1011 size_t size [[maybe_unused]],
CMD_LINE getopt,
1012 enum charset_enum is_os_charset_arg,
const char *def_val,
1017 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1020 binlog_status_arg, on_check_func, on_update_func, substitute,
1025 assert(size ==
sizeof(
char *));
1030 flags &= ~ALLOCATED;
1087 :
const_cast<char *
>(
"");
1102 ptrdiff_t off,
size_t size,
CMD_LINE getopt,
1103 enum charset_enum is_os_charset_arg,
const char *def_val)
1105 is_os_charset_arg, def_val) {}
1110 std::string_view keycache_name)
override {
1114 static const char *altered_value =
"some-other-version";
1115 const uchar *altered_value_ptr = pointer_cast<uchar *>(&altered_value);
1116 value = altered_value_ptr;
1155 std::string_view)
override {
1157 return proxy_user[0] ? pointer_cast<const uchar *>(proxy_user) :
nullptr;
1169 std::string_view)
override {
1171 return external_user.
length ? pointer_cast<const uchar *>(external_user.
str)
1191 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1192 size_t size [[maybe_unused]],
CMD_LINE getopt,
1193 enum charset_enum is_os_charset_arg,
const char *def_val,
1198 const char *substitute =
nullptr)
1200 getopt, is_os_charset_arg, def_val,
lock,
1201 binlog_status_arg, on_check_func, on_update_func,
1229 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
1234 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1237 binlog_status_arg, on_check_func, on_update_func, substitute,
1275 std::string_view)
override {
1291#define KEYCACHE_VAR(X) \
1292 sys_var::GLOBAL, offsetof(KEY_CACHE, X), sizeof(((KEY_CACHE *)0)->X)
1293#define keycache_var_ptr(KC, OFF) (((uchar *)(KC)) + (OFF))
1294#define keycache_var(KC, OFF) (*(ulonglong *)keycache_var_ptr(KC, OFF))
1314 ptrdiff_t off,
size_t size,
CMD_LINE getopt,
1320 const char *substitute =
nullptr)
1322 name_arg,
comment, flag_args, -1,
1323 size, getopt, min_val, max_val, def_val, block_size,
lock,
1324 binlog_status_arg, on_check_func,
nullptr, substitute),
1343 "is deprecated and will be removed in a "
1361 if (key_cache->
in_init)
return true;
1366 std::string_view keycache_name)
override {
1367 if (!keycache_name.empty())
1369 ER_WARN_DEPRECATED_SYNTAX,
1370 "@@global.%.*s.%s syntax "
1371 "is deprecated and will be removed in a "
1373 static_cast<int>(keycache_name.size()),
1374 keycache_name.data(),
name.
str);
1392 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1393 size_t size [[maybe_unused]],
CMD_LINE getopt,
double min_val,
1394 double max_val,
double def_val,
PolyLock *
lock =
nullptr,
1398 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1402 binlog_status_arg, on_check_func, on_update_func, substitute,
1408 assert(min_val <= max_val);
1409 assert(min_val <= def_val);
1410 assert(max_val >= def_val);
1411 assert(size ==
sizeof(
double));
1484 const char *name_arg,
const char *
comment,
int, ptrdiff_t off,
1490 const char *substitute =
nullptr)
1492 max_val, def_val, block_size,
lock, binlog_status_arg,
1493 on_check_func, on_update_func, substitute) {}
1495 std::string_view keycache_name)
override {
1504#define MAX_SET(X) ((((1ULL << ((X)-1)) - 1) << 1) | 1)
1523 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1524 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
1529 const char *substitute =
nullptr)
1531 values, def_val,
lock, binlog_status_arg, on_check_func,
1532 on_update_func, substitute) {
1538 assert(strcmp(values[
typelib.
count - 1],
"default") == 0);
1571 if ((tmp < 0 && !var->value->unsigned_flag) ||
1600 std::string_view)
override {
1623 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1624 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
1629 const char *substitute =
nullptr)
1631 values, def_val,
lock, binlog_status_arg, on_check_func,
1632 on_update_func, substitute) {
1654 nullptr, &
error, &error_len, ¬_used);
1668 if ((tmp < 0 && !var->value->unsigned_flag) ||
1697 std::string_view)
override {
1726 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1727 size_t size [[maybe_unused]],
CMD_LINE getopt,
int plugin_type_arg,
1732 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1735 binlog_status_arg, on_check_func, on_update_func, substitute,
1740 assert(getopt.
id == -1);
1772 if (oldval != newval) {
1792 pname.
str = *default_value;
1813 std::string_view)
override {
1827#if defined(ENABLED_DEBUG_SYNC)
1831class Sys_var_debug_sync :
public sys_var {
1834 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
1836 enum binlog_status_enum binlog_status_arg = VARIABLE_NOT_IN_BINLOG,
1837 on_check_function on_check_func =
nullptr,
1838 on_update_function on_update_func =
nullptr,
1839 const char *substitute =
nullptr,
int parse_flag = PARSE_NORMAL)
1842 binlog_status_arg, on_check_func, on_update_func, substitute,
1844 assert(
scope() == ONLY_SESSION);
1874 std::string_view)
override {
1875 return debug_sync_value_ptr(running_thd);
1918 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1925 const char *substitute =
nullptr)
1928 on_check_func, on_update_func, substitute) {
1934 assert(getopt.
id == -1);
1955 std::string_view)
override {
1998 const char *substitute =
nullptr)
2000 getopt, min_val, max_val, 0, block_size,
lock,
2001 binlog_status_arg, on_check_func,
nullptr,
2006 assert(getopt.
id == -1);
2016 var->
value =
nullptr;
2023 std::string_view)
override {
2045 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
2051 const char *substitute =
nullptr)
2053 min_val, max_val, 0.0,
lock, binlog_status_arg,
2054 on_check_func,
nullptr, substitute),
2058 assert(getopt.
id == -1);
2068 var->
value =
nullptr;
2075 std::string_view)
override {
2098 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2103 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2106 on_check_func, on_update_func, substitute, parse_flag) {
2108 assert(getopt.
id == -1);
2109 assert(
lock ==
nullptr);
2135 return pointer_cast<const uchar *>(
2160 const char *substitute =
nullptr)
2193template <
typename Struct_type,
typename Name_getter>
2197 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2198 size_t size [[maybe_unused]],
CMD_LINE getopt,
void *def_val,
2203 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2206 binlog_status_arg, on_check_func, on_update_func, substitute,
2217 assert(getopt.
id == -1);
2218 assert(size ==
sizeof(
void *));
2237 const Struct_type *ptr =
2240 strcpy(def_val, pointer_cast<const char *>(Name_getter(ptr).get_name()));
2246 std::string_view)
override {
2247 const Struct_type *ptr =
session_var(target_thd,
const Struct_type *);
2248 return ptr ? Name_getter(ptr).get_name() :
nullptr;
2251 const Struct_type *ptr =
global_var(
const Struct_type *);
2252 return ptr ? Name_getter(ptr).get_name() :
nullptr;
2269 ptrdiff_t off,
size_t size [[maybe_unused]],
CMD_LINE getopt,
2274 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2277 binlog_status_arg, on_check_func, on_update_func, substitute,
2279 assert(getopt.
id == -1);
2288 if (!res)
return true;
2315 std::string_view)
override {
2325 return pointer_cast<const uchar *>(
2329 return pointer_cast<const uchar *>(
2346 int flag_args, ptrdiff_t off,
size_t size,
2347 CMD_LINE getopt,
const char *values[],
2352 def_val,
lock, binlog_status_arg, on_check_func) {}
2368 int flag_args, ptrdiff_t off,
size_t size,
2373 lock, binlog_status_arg, on_check_func) {}
2384 int flag_args, ptrdiff_t off,
size_t size,
2385 CMD_LINE getopt,
const char *values[],
2390 size, getopt, values, def_val,
lock, binlog_status_arg,
2401 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2402 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *def_val,
2407 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2410 binlog_status_arg, on_check_func, on_update_func, substitute,
2436 std::string_view)
override {
2444 return (
uchar *)ret;
2452#ifdef HAVE_GTID_NEXT_LIST
2460class Sys_var_gtid_set :
public sys_var {
2463 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2465 enum binlog_status_enum binlog_status_arg = VARIABLE_NOT_IN_BINLOG,
2466 on_check_function on_check_func = 0,
2467 on_update_function on_update_func = 0,
const char *substitute = 0,
2468 int parse_flag = PARSE_NORMAL)
2471 binlog_status_arg, on_check_func, on_update_func, substitute,
2484 char *ptr = (
char *)(
intptr)option.def_value;
2512 const std::string &)
override {
2619 time_t current_time = time(
nullptr);
2622 current_time = 1616893190;
2626 current_time = 1616893200;
2630 localtime_r(¤t_time, &tm_tmp);
2642 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2647 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2650 binlog_status_arg, on_check_func, on_update_func, substitute,
2675 if (!res)
return true;
2729 std::string_view)
override {
2731 char *
buf =
nullptr;
2732 bool remote = (target_thd != running_thd);
2740#ifdef HAVE_GTID_NEXT_LIST
2742 target_thd->owned_gtid_set.get_string_length() + 1);
2745 target_thd->owned_gtid_set.to_string(
buf);
2782 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2783 size_t size,
CMD_LINE getopt,
const char *values[],
uint def_val,
2788 def_val,
lock, binlog_status_arg, on_check_func) {}
2796 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2804 lock, binlog_status_arg, on_check_func) {}
2812 int flag_args, ptrdiff_t off,
size_t size,
2817 size, getopt, def_val,
lock, binlog_status_arg,
void rdlock()
Acquire the read lock.
Definition: rpl_gtid.h:459
void wrlock()
Acquire the write lock.
Definition: rpl_gtid.h:468
void unlock()
Release the lock (whether it is a write or read lock).
Definition: rpl_gtid.h:479
Definition: sql_error.h:224
Represents a set of GTIDs.
Definition: rpl_gtid.h:1454
static bool is_valid(const char *text)
Returns true if the given string is a valid specification of a Gtid_set, false otherwise.
Definition: rpl_gtid_set.cc:567
size_t get_string_length(const String_format *string_format=nullptr) const
Returns the length of the output from to_string.
Definition: rpl_gtid_set.cc:868
size_t to_string(char *buf, bool need_lock=false, const String_format *string_format=nullptr) const
Formats this Gtid_set as a string and saves in a given buffer.
Definition: rpl_gtid_set.cc:760
const Gtid_set * get_executed_gtids() const
Definition: rpl_gtid.h:3194
const Gtid_set * get_lost_gtids() const
Return a pointer to the Gtid_set that contains the lost gtids.
Definition: rpl_gtid.h:3189
const Owned_gtids * get_owned_gtids() const
Return a pointer to the Owned_gtids that contains the owned gtids.
Definition: rpl_gtid.h:3210
int32 get_anonymous_ownership_count()
Return the number of clients that hold anonymous ownership.
Definition: rpl_gtid.h:2864
virtual double val_real()=0
virtual longlong val_int()=0
virtual Item_result result_type() const
Definition: item.h:1329
bool unsigned_flag
Definition: item.h:3450
virtual String * val_str(String *str)=0
Represents the set of GTIDs that are owned by some thread.
Definition: rpl_gtid.h:2416
size_t get_max_string_length() const
Return an upper bound on the length of the string representation of this Owned_gtids.
Definition: rpl_gtid.h:2511
int to_string(char *out) const
Write a string representation of this Owned_gtids to the given buffer.
Definition: rpl_gtid.h:2484
wrapper to hide a mutex and an rwlock under a common interface
Definition: sys_vars_shared.h:51
char * mem_strdup(const char *str)
Definition: sql_class.h:431
LEX_CSTRING external_user() const
Getter method for member m_external_user.
Definition: sql_security_ctx.h:443
LEX_CSTRING proxy_user() const
Getter method for member m_proxy_user.
Definition: sql_security_ctx.cc:1035
bool update(char **var, char *val, size_t val_len)
Frees the old allocated memory, memdup()'s the given val to a new memory address & updates the sessio...
Definition: sys_vars_resource_mgr.cc:72
@ SL_WARNING
Definition: sql_error.h:62
Using this class is fraught with peril, and you need to be very careful when doing so.
Definition: sql_string.h:166
LEX_CSTRING lex_cstring() const
Definition: sql_string.h:274
const CHARSET_INFO * charset() const
Definition: sql_string.h:239
static bool needs_conversion(size_t arg_length, const CHARSET_INFO *cs_from, const CHARSET_INFO *cs_to, size_t *offset)
Definition: sql_string.cc:268
const char * ptr() const
Definition: sql_string.h:248
size_t length() const
Definition: sql_string.h:240
A sys_var that is an alias for another sys_var.
Definition: sys_vars.h:351
bool set_user(const char *usr) override
Definition: sys_vars.h:433
Sys_var_alias(const char *name_arg, sys_var &base_var, const char *deprecation_substitute_arg, sys_var *persisted_alias, bool is_persisted_deprecated)
Special constructor used to implement Sys_var_deprecated alias.
Definition: sys_vars.h:377
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:457
const char * get_host() override
Definition: sys_vars.h:435
ulonglong get_max_value() override
Definition: sys_vars.h:408
sys_var & m_base_var
Definition: sys_vars.h:353
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:454
bool is_non_persistent() override
Definition: sys_vars.h:416
void set_timestamp(ulonglong ts) override
Definition: sys_vars.h:442
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view keycache_name) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:462
void cleanup() override
All the cleanup procedures should be performed here.
Definition: sys_vars.h:399
Sys_var_alias(const char *name_arg, sys_var &base_var)
Definition: sys_vars.h:393
ulonglong get_timestamp() const override
Definition: sys_vars.h:437
void set_source(enum_variable_source src) override
Definition: sys_vars.h:427
void update_default(longlong new_def_value) override
Definition: sys_vars.h:403
longlong get_default() override
Definition: sys_vars.h:406
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:448
void set_timestamp() override
Definition: sys_vars.h:441
sys_var & get_base_var()
Definition: sys_vars.h:397
void set_user_host(THD *thd) override
Definition: sys_vars.h:440
const char * get_user() override
Definition: sys_vars.h:434
bool set_source_name(const char *path) override
Definition: sys_vars.h:430
void set_arg_source(get_opt_arg_source *arg_source) override
Definition: sys_vars.h:410
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:466
void set_is_plugin(bool is_plugin) override
Definition: sys_vars.h:413
bool check_update_type(Item_result type) override
Definition: sys_vars.h:420
void global_save_default(THD *thd, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:451
const char * get_source_name() override
Definition: sys_vars.h:424
ulong get_var_type() override
Returns variable type.
Definition: sys_vars.h:409
void saved_value_to_string(THD *thd, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:417
enum_variable_source get_source() override
Definition: sys_vars.h:423
sys_var_pluginvar * cast_pluginvar() override
downcast for sys_var_pluginvar.
Definition: sys_vars.h:400
longlong get_min_value() override
Definition: sys_vars.h:407
bool set_host(const char *hst) override
Definition: sys_vars.h:436
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:445
Definition: sys_vars.h:2809
Sys_var_binlog_encryption(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, bool def_val, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func)
Definition: sys_vars.h:2811
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:7345
The class for bit variables - a variant of boolean that stores the value in a bit.
Definition: sys_vars.h:1906
Sys_var_bit(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, ulonglong bitmask_arg, bool def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, pre_update_function pre_update_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr)
Definition: sys_vars.h:1917
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1948
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1951
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1954
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1945
void set(uchar *ptr, ulonglong value)
Definition: sys_vars.h:1909
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1937
ulonglong bitmask
Definition: sys_vars.h:1907
bool reverse_semantics
Definition: sys_vars.h:1908
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1961
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1941
The class for boolean variables - a variant of ENUM variables with the fixed list of values of { OFF ...
Definition: sys_vars.h:684
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:707
Sys_var_bool(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, bool def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:686
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:711
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:718
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:715
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:702
Abstract base class for read-only variables (global or session) of string type where the value is gen...
Definition: sys_vars.h:2541
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2554
Sys_var_charptr_func(const char *name_arg, const char *comment, flag_enum flag_arg)
Definition: sys_vars.h:2543
const uchar * session_value_ptr(THD *, THD *, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2575
bool check_update_type(Item_result) override
Definition: sys_vars.h:2571
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2567
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2564
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2558
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2579
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2563
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2562
The class for string variables.
Definition: sys_vars.h:1007
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1033
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1094
void cleanup() override
All the cleanup procedures should be performed here.
Definition: sys_vars.h:1028
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1090
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1074
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1068
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1057
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4253
Sys_var_charptr(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, enum charset_enum is_os_charset_arg, const char *def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:1009
@session.dbug and @global.dbug variables.
Definition: sys_vars.h:1226
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1241
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:1265
const uchar * session_value_ptr(THD *running_thd, THD *, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1274
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1285
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1280
bool session_update(THD *, set_var *var) override
Definition: sys_vars.h:1252
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1260
Sys_var_dbug(const char *name_arg, const char *comment, int flag_args, CMD_LINE getopt, const char *def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:1228
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1270
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1266
A deprecated alias for a variable.
Definition: sys_vars.h:550
std::string m_comment
Definition: sys_vars.h:552
Sys_var_deprecated_alias(const char *name_arg, sys_var &base_var)
Definition: sys_vars.h:555
The class for floating point variables.
Definition: sys_vars.h:1389
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1425
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1438
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1421
Sys_var_double(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, double min_val, double max_val, double def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:1391
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1435
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1429
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1413
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1432
Definition: sys_vars.h:2793
Sys_var_enforce_gtid_consistency(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const ALIAS aliases[], const uint value_count, uint def_val, uint command_line_no_value, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr)
Definition: sys_vars.h:2795
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4716
A class for @global.binlog_checksum that has a specialized update method.
Definition: sys_vars.h:2381
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4269
Sys_var_enum_binlog_checksum(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const char *values[], uint def_val, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func=nullptr)
Definition: sys_vars.h:2383
The class for ENUM variables - variables that take one value from a fixed list of values.
Definition: sys_vars.h:631
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:658
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:654
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:664
Sys_var_enum(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const char *values[], uint def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:633
const uchar * session_value_ptr(THD *, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:668
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:661
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:673
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:649
Definition: sys_vars.h:1161
const uchar * session_value_ptr(THD *, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1168
Sys_var_external_user(const char *name_arg, const char *comment_arg, enum charset_enum is_os_charset_arg)
Definition: sys_vars.h:1163
The class for flagset variables - a variant of SET that allows in-place editing (turning on/off indiv...
Definition: sys_vars.h:1520
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1584
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1599
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1580
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1605
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1591
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1541
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1588
Sys_var_flagset(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const char *values[], ulonglong def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr)
Definition: sys_vars.h:1522
void saved_value_to_string(THD *thd, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1594
Class for @global.gtid_executed.
Definition: sys_vars.h:2588
Sys_var_gtid_executed(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2590
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2593
Definition: sys_vars.h:2779
Sys_var_gtid_mode(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const char *values[], uint def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr)
Definition: sys_vars.h:2781
bool global_update(THD *thd, set_var *var) override
This function shall be called whenever the global scope of gtid_mode var is updated.
Definition: sys_vars.cc:4419
Class for gtid_next.
Definition: sys_vars.h:2398
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2427
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2435
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4303
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2446
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2428
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2416
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2420
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2431
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2432
Sys_var_gtid_next(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const char *def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:2400
Definition: sys_vars.h:2722
Sys_var_gtid_owned(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2724
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2765
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2728
Class for @session.gtid_purged.
Definition: sys_vars.h:2639
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:6677
const uchar * session_value_ptr(THD *, THD *, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2716
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2662
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:2670
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2688
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2653
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2692
Sys_var_gtid_purged(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t, CMD_LINE getopt, const char *def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:2641
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2658
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2666
A subclass of Sys_var_have to return dynamic values.
Definition: sys_vars.h:2148
static enum SHOW_COMP_OPTION dummy_
Definition: sys_vars.h:2177
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2171
enum SHOW_COMP_OPTION(* func_)(THD *)
Definition: sys_vars.h:2176
Sys_var_have_func(const char *name_arg, const char *comment, enum SHOW_COMP_OPTION(*func)(THD *), const char *substitute=nullptr)
Construct a new variable.
Definition: sys_vars.h:2158
The class for read-only variables that show whether a particular feature is supported by the server.
Definition: sys_vars.h:2095
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2123
Sys_var_have(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:2097
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2127
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2134
bool check_update_type(Item_result) override
Definition: sys_vars.h:2138
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2115
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2128
const uchar * session_value_ptr(THD *, THD *, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2130
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2119
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2129
Sys_var_integer template is used to generate Sys_var_* classes for variables that represent the value...
Definition: sys_vars.h:195
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:313
Sys_var_integer(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, T min_val, T max_val, T def_val, uint block_size, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:197
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:230
T * max_var_ptr()
Definition: sys_vars.h:326
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:309
bool check_update_type(Item_result type) override
Definition: sys_vars.h:306
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:298
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:316
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:302
The class for keycache_* variables.
Definition: sys_vars.h:1309
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:1365
Sys_var_keycache(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, ulonglong min_val, ulonglong max_val, ulonglong def_val, uint block_size, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func, keycache_update_function on_update_func, const char *substitute=nullptr)
Definition: sys_vars.h:1313
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1332
keycache_update_function keycache_update
Definition: sys_vars.h:1310
The class for string variables.
Definition: sys_vars.h:1188
Sys_var_lexstring(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, enum charset_enum is_os_charset_arg, const char *def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr)
Definition: sys_vars.h:1190
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1207
The class for the max_user_connections.
Definition: sys_vars.h:1481
Sys_var_max_user_conn(const char *name_arg, const char *comment, int, ptrdiff_t off, size_t size, CMD_LINE getopt, uint min_val, uint max_val, uint def_val, uint block_size, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr)
Definition: sys_vars.h:1483
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view keycache_name) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1494
A variant of enum where:
Definition: sys_vars.h:747
uint command_line_no_value
Definition: sys_vars.h:992
const char * command_line_value
Pointer to the value set by the command line (set by the command line parser, copied to the global va...
Definition: sys_vars.h:991
const uint value_count
The number of allowed numeric values.
Definition: sys_vars.h:981
uint alias_count
The number of elements of aliases (computed in the constructor).
Definition: sys_vars.h:985
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:952
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:926
const ALIAS * aliases
Array of all textual aliases.
Definition: sys_vars.h:983
bool check_update_type(Item_result type) override
Definition: sys_vars.h:911
const uchar * session_value_ptr(THD *, THD *, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:963
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:914
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:939
int find_value(const char *text)
Return the numeric value for a given alias string, or -1 if the string is not a valid alias.
Definition: sys_vars.h:832
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:883
Sys_var_multi_enum(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const ALIAS aliases_arg[], uint value_count_arg, uint def_val, uint command_line_no_value_arg, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Enumerated type system variable.
Definition: sys_vars.h:799
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:959
const char * fixup_command_line(const char *value_str)
Because of limitations in the command-line parsing library, the value given on the command-line canno...
Definition: sys_vars.h:853
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:974
The class for variables which value is a plugin.
Definition: sys_vars.h:1721
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1809
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1742
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1785
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1805
void global_save_default(THD *thd, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1789
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1812
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1777
Sys_var_plugin(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, int plugin_type_arg, const char **def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:1725
void do_update(plugin_ref *valptr, plugin_ref newval)
Definition: sys_vars.h:1770
int plugin_type
Definition: sys_vars.h:1722
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1781
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1819
Definition: sys_vars.h:1123
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:1146
const uchar * session_value_ptr(THD *, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1154
bool check_update_type(Item_result) override
Definition: sys_vars.h:1151
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:1138
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:1134
Sys_var_proxy_user(const char *name_arg, const char *comment, enum charset_enum is_os_charset_arg)
Definition: sys_vars.h:1125
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:1142
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:1147
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1148
Similar to Sys_var_session_special, but with double storage.
Definition: sys_vars.h:2036
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2070
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2067
session_special_read_double_function read_func
Definition: sys_vars.h:2040
double(* session_special_read_double_function)(THD *thd)
Definition: sys_vars.h:2038
session_special_update_function update_func
Definition: sys_vars.h:2041
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2071
Sys_var_session_special_double(const char *name_arg, const char *comment, int flag_args, CMD_LINE getopt, double min_val, double max_val, uint, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func, session_special_update_function update_func_arg, session_special_read_double_function read_func_arg, const char *substitute=nullptr)
Definition: sys_vars.h:2044
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2063
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2060
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2074
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2079
bool(* session_special_update_function)(THD *thd, set_var *var)
Definition: sys_vars.h:2037
The class for variables that have a special meaning for a session, such as @timestamp or @rnd_seed1,...
Definition: sys_vars.h:1983
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2011
bool(* session_special_update_function)(THD *thd, set_var *var)
Definition: sys_vars.h:1984
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2008
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2015
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2027
Sys_var_session_special(const char *name_arg, const char *comment, int flag_args, CMD_LINE getopt, ulonglong min_val, ulonglong max_val, uint block_size, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func, session_special_update_function update_func_arg, session_special_read_function read_func_arg, const char *substitute=nullptr)
Definition: sys_vars.h:1991
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2018
ulonglong(* session_special_read_function)(THD *thd)
Definition: sys_vars.h:1985
session_special_read_function read_func
Definition: sys_vars.h:1987
session_special_update_function update_func
Definition: sys_vars.h:1988
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2019
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2022
The class for SET variables - variables taking zero or more values from the given list.
Definition: sys_vars.h:1620
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1677
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:1640
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1702
Sys_var_set(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const char *values[], ulonglong def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr)
Definition: sys_vars.h:1622
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1685
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1688
void saved_value_to_string(THD *thd, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1691
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1681
const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:1696
Generic class for variables for storing entities that are internally represented as structures,...
Definition: sys_vars.h:2194
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2242
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2236
const uchar * session_value_ptr(THD *, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2245
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2221
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:2232
Sys_var_struct(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, void *def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:2196
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:2225
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2250
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2229
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2220
Class for @global.system_time_zone.
Definition: sys_vars.h:2610
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2617
Sys_var_system_time_zone(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2612
The class for test_flags (core_file for now).
Definition: sys_vars.h:1453
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:1465
bool test_flag_value
Definition: sys_vars.h:1455
uint test_flag_mask
Definition: sys_vars.h:1456
Sys_var_test_flag(const char *name_arg, const char *comment, uint mask)
Definition: sys_vars.h:1459
Class representing the 'transaction_isolation' system variable.
Definition: sys_vars.h:2343
bool session_update(THD *thd, set_var *var) override
This function sets the session variable thd->variables.transaction_isolation to reflect changes to @s...
Definition: sys_vars.cc:5165
Sys_var_transaction_isolation(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, const char *values[], uint def_val, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func)
Definition: sys_vars.h:2345
Class representing the tx_read_only system variable for setting default transaction access mode.
Definition: sys_vars.h:2365
bool session_update(THD *thd, set_var *var) override
This function sets the session variable thd->variables.transaction_read_only to reflect changes to @s...
Definition: sys_vars.cc:5234
Sys_var_transaction_read_only(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, bool def_val, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func)
Definition: sys_vars.h:2367
Helper class for variables that take values from a TYPELIB.
Definition: sys_vars.h:566
Sys_var_typelib(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, CMD_LINE getopt, SHOW_TYPE show_val_type_arg, const char *values[], ulonglong def_val, PolyLock *lock, enum binlog_status_enum binlog_status_arg, on_check_function on_check_func, on_update_function on_update_func, const char *substitute, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:571
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:589
TYPELIB typelib
Definition: sys_vars.h:568
bool check_update_type(Item_result type) override
Definition: sys_vars.h:612
The class for variables that store time zones.
Definition: sys_vars.h:2266
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:2283
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2297
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:2308
Sys_var_tz(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, Time_zone **def_val, PolyLock *lock=nullptr, enum binlog_status_enum binlog_status_arg=VARIABLE_NOT_IN_BINLOG, on_check_function on_check_func=nullptr, on_update_function on_update_func=nullptr, const char *substitute=nullptr, int parse_flag=PARSE_NORMAL)
Definition: sys_vars.h:2268
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2332
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:2301
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2305
const uchar * session_value_ptr(THD *, THD *target_thd, std::string_view) override
A pointer to a value of the variable for SHOW.
Definition: sys_vars.h:2314
void saved_value_to_string(THD *, set_var *var, char *def_val) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2311
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2328
Definition: sys_vars.h:1099
~Sys_var_version() override=default
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:1109
Sys_var_version(const char *name_arg, const char *comment, int flag_args, ptrdiff_t off, size_t size, CMD_LINE getopt, enum charset_enum is_os_charset_arg, const char *def_val)
Definition: sys_vars.h:1101
std::string_view get_keycache_name() const
Definition: set_var.h:677
bool is_keycache_var() const
Definition: set_var.h:654
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:33
Gtid owned_gtid
The GTID of the currently owned transaction.
Definition: sql_class.h:3692
static const int OWNED_SIDNO_GTID_SET
Definition: sql_class.h:3693
rpl_sid owned_sid
For convenience, this contains the SID component of the GTID stored in owned_gtid.
Definition: sql_class.h:3700
double double_value
Definition: sql_class.h:2738
static const int OWNED_SIDNO_ANONYMOUS
Definition: sql_class.h:3694
Session_sysvar_resource_manager session_sysvar_res_mgr
Definition: sql_class.h:4372
void * alloc(size_t size)
Definition: sql_lexer_thd.h:47
bool bool_value
Definition: sql_class.h:2734
System_variables variables
Definition: sql_lexer_thd.h:61
char * strmake(const char *str, size_t size) const
Definition: sql_lexer_thd.h:49
Security_context * security_context() const
Definition: sql_class.h:1276
bool time_zone_used
Definition: sql_class.h:2700
ulonglong ulonglong_value
Definition: sql_class.h:2737
const USER_CONN * get_user_connect() const
Definition: sql_class.h:2349
union THD::@166 sys_var_tmp
This class represents abstract time zone and provides basic interface for MYSQL_TIME <-> my_time_t co...
Definition: tztime.h:48
virtual const String * get_name() const =0
Because of constness of String returned by get_name() time zone name have to be already zeroended to ...
set_var_base descendant for assignments to the system variables.
Definition: set_var.h:970
ulonglong ulonglong_value
for all integer, set, enum sysvars
Definition: set_var.h:976
const enum_var_type type
Definition: set_var.h:973
const System_variable_tracker m_var_tracker
Definition: set_var.h:985
Time_zone * time_zone
for Sys_var_tz
Definition: set_var.h:979
Item * value
the expression that provides the new value of the variable
Definition: set_var.h:972
union set_var::@160 save_result
Resolver of the variable at the left hand side of the assignment.
LEX_STRING string_value
for Sys_var_charptr and others
Definition: set_var.h:980
plugin_ref plugin
for Sys_var_plugin
Definition: set_var.h:978
const void * ptr
for Sys_var_struct
Definition: set_var.h:981
double double_value
for Sys_var_double
Definition: set_var.h:977
Definition: sql_plugin_var.h:195
A class representing one system variable - that is something that can be accessed as @global....
Definition: set_var.h:104
virtual bool global_update(THD *thd, set_var *var)=0
virtual bool set_source_name(const char *path)
Definition: set_var.h:237
my_option option
min, max, default values are stored here
Definition: set_var.h:172
my_option * get_option()
Definition: set_var.h:251
bool(* on_update_function)(sys_var *self, THD *thd, enum_var_type type)
Definition: set_var.h:166
virtual void session_save_default(THD *thd, set_var *var)=0
save the session default value of the variable in var
LEX_CSTRING name
Definition: set_var.h:107
virtual void set_arg_source(get_opt_arg_source *)
Definition: set_var.h:230
virtual const char * get_host()
Definition: set_var.h:245
virtual ulonglong get_max_value()
Definition: set_var.h:223
virtual void set_user_host(THD *thd)
Definition: set_var.cc:453
uchar * global_var_ptr()
Definition: set_var.cc:400
enum sys_var::binlog_status_enum binlog_status
uchar * session_var_ptr(THD *thd)
A pointer to a storage area of the variable, to the raw data.
Definition: set_var.cc:396
flag_enum
Definition: set_var.h:125
@ SESSION
Definition: set_var.h:127
@ GLOBAL
Definition: set_var.h:126
@ READONLY
Definition: set_var.h:130
@ ALLOCATED
Definition: set_var.h:131
@ NOTPERSIST
Definition: set_var.h:134
@ PERSIST_AS_READ_ONLY
There can be some variables which needs to be set before plugin is loaded.
Definition: set_var.h:145
@ ONLY_SESSION
Definition: set_var.h:128
virtual bool do_check(THD *thd, set_var *var)=0
virtual bool check_update_type(Item_result type)=0
virtual const char * get_user()
Definition: set_var.h:244
virtual void cleanup()
All the cleanup procedures should be performed here.
Definition: set_var.h:206
virtual longlong get_min_value()
Definition: set_var.h:222
virtual void set_is_plugin(bool)
Definition: set_var.h:231
binlog_status_enum
Enumeration type to indicate for a system variable whether it will be written to the binlog or not.
Definition: set_var.h:158
@ VARIABLE_NOT_IN_BINLOG
Definition: set_var.h:159
virtual void saved_value_to_string(THD *thd, set_var *var, char *def_val)=0
This function converts value stored in save_result to string.
bool is_os_charset
true if the value is in character_set_filesystem
Definition: set_var.h:183
ptrdiff_t offset
offset to the value from global_system_variables
Definition: set_var.h:174
virtual bool set_user(const char *usr)
Definition: set_var.h:241
bool(* on_check_function)(sys_var *self, THD *thd, set_var *var)
Definition: set_var.h:164
virtual enum_variable_source get_source()
Definition: set_var.h:232
virtual void global_save_default(THD *thd, set_var *var)=0
save the global default value of the variable in var
virtual const uchar * global_value_ptr(THD *thd, std::string_view keycache_name)
Definition: set_var.cc:392
on_check_function on_check
Definition: set_var.h:175
const CHARSET_INFO * charset(THD *thd)
Definition: set_var.cc:588
virtual ulong get_var_type()
Returns variable type.
Definition: set_var.h:229
virtual const char * get_source_name()
Definition: set_var.h:233
pre_update_function pre_update
Pointer to function to be invoked before updating system variable (but after calling on_check hook),...
Definition: set_var.h:180
int scope() const
Definition: set_var.h:272
virtual void set_timestamp()
Definition: set_var.h:252
const SHOW_TYPE show_val_type
what value_ptr() returns for sql_show.cc
Definition: set_var.h:171
on_update_function on_update
Definition: set_var.h:181
int flags
or'ed flag_enum values
Definition: set_var.h:169
static const int PARSE_NORMAL
Definition: set_var.h:153
virtual const uchar * session_value_ptr(THD *running_thd, THD *target_thd, std::string_view keycache_name)
A pointer to a value of the variable for SHOW.
Definition: set_var.cc:387
virtual void update_default(longlong new_def_value)
Definition: set_var.h:218
virtual bool set_host(const char *hst)
Definition: set_var.h:246
PolyLock * guard
second lock that protects the variable
Definition: set_var.h:173
virtual longlong get_default()
Definition: set_var.h:221
virtual bool is_non_persistent()
Definition: set_var.h:254
virtual sys_var_pluginvar * cast_pluginvar()
downcast for sys_var_pluginvar.
Definition: set_var.h:211
const char *const deprecation_substitute
Definition: set_var.h:182
virtual ulonglong get_timestamp() const
Definition: set_var.h:249
bool(* pre_update_function)(sys_var *self, THD *thd, set_var *var)
Definition: set_var.h:165
bool is_readonly() const
Definition: set_var.h:274
virtual bool session_update(THD *thd, set_var *var)=0
int m_parse_flag
either PARSE_EARLY or PARSE_NORMAL.
Definition: set_var.h:170
virtual void set_source(enum_variable_source src)
Definition: set_var.h:234
Declarations for the Debug Sync Facility.
Fido Client Authentication nullptr
Definition: fido_client_plugin.cc:221
#define base_name(A)
Definition: my_sys.h:705
void my_error(int nr, myf MyFlags,...)
Fill in and print a previously registered error message.
Definition: my_error.cc:215
#define MAX_TIME_ZONE_NAME_LENGTH
Maximum length of time zone name that we support (Time zone name is char(64) in db).
Definition: binlog_event.h:118
#define MYSQL_STORAGE_ENGINE_PLUGIN
Definition: plugin.h:113
Key cache variable structures.
KEY_CACHE * dflt_key_cache
Definition: keycache.h:134
KEY_CACHE * create_key_cache(std::string_view name)
Create a MyISAM Multiple Key Cache.
Definition: keycaches.cc:75
KEY_CACHE * get_key_cache(std::string_view cache_name)
Resolve a MyISAM Multiple Key Cache by name.
Definition: keycaches.cc:67
KEY_CACHE zero_key_cache
@nonexistent_cache.param->value_ptr() points here
Definition: keycaches.cc:65
static std::string to_string(const LEX_STRING &str)
Definition: lex_string.h:49
#define comment
Definition: lexyy.cc:959
@ READ_ONLY
The opened file can be only read.
A better implementation of the UNIX ctype(3) library.
MYSQL_PLUGIN_IMPORT CHARSET_INFO * system_charset_info
Definition: mysqld.cc:1541
#define my_strcasecmp(s, a, b)
Definition: m_ctype.h:709
MYSQL_PLUGIN_IMPORT CHARSET_INFO my_charset_latin1
Definition: ctype-latin1.cc:367
char * longlong10_to_str(int64_t val, char *dst, int radix)
Converts a 64-bit integer to its string representation in decimal notation.
Definition: int2str.cc:100
size_t my_fcvt(double x, int precision, char *to, bool *error)
Converts a given floating point number to a zero-terminated string representation using the 'f' forma...
Definition: dtoa.cc:203
static mi_bit_type mask[]
Definition: mi_packrec.cc:140
This file includes constants used by all storage engines.
Some useful bit functions.
static uint my_count_bits(ulonglong v)
Definition: my_bit.h:53
Header for compiler-dependent features.
#define DBUG_SET_INITIAL(a1)
Definition: my_dbug.h:191
#define DBUG_EXECUTE_IF(keyword, a1)
Definition: my_dbug.h:170
#define DBUG_PRINT(keyword, arglist)
Definition: my_dbug.h:180
#define DBUG_EXPLAIN(buf, len)
Definition: my_dbug.h:198
#define DBUG_SET(a1)
Definition: my_dbug.h:190
#define DBUG_EXPLAIN_INITIAL(buf, len)
Definition: my_dbug.h:199
#define DBUG_POP()
Definition: my_dbug.h:189
#define DBUG_TRACE
Definition: my_dbug.h:145
#define GET_NO_ARG
Definition: my_getopt.h:43
get_opt_arg_type
Enumeration of the my_option::arg_type attributes.
Definition: my_getopt.h:80
@ OPT_ARG
Definition: my_getopt.h:80
@ NO_ARG
Definition: my_getopt.h:80
#define GET_STR
Definition: my_getopt.h:51
#define GET_DOUBLE
Definition: my_getopt.h:56
ulonglong getopt_ull_limit_value(ulonglong num, const struct my_option *optp, bool *fix)
Definition: my_getopt.cc:1257
#define GET_SET
Definition: my_getopt.h:55
#define GET_ENUM
Definition: my_getopt.h:54
#define GET_FLAGSET
Definition: my_getopt.h:57
#define GET_STR_ALLOC
Definition: my_getopt.h:52
double getopt_double_limit_value(double num, const struct my_option *optp, bool *fix)
Definition: my_getopt.cc:1297
double getopt_ulonglong2double(ulonglong)
Returns the double value which corresponds to the given raw representation.
Definition: my_getopt.cc:167
ulonglong max_of_int_range(int var_type)
Maximum possible value for an integer GET_* variable type.
Definition: my_getopt.cc:1159
#define GET_ASK_ADDR
Definition: my_getopt.h:70
#define GET_BOOL
Definition: my_getopt.h:44
longlong getopt_ll_limit_value(longlong, const struct my_option *, bool *fix)
Definition: my_getopt.cc:1186
Some integer typedefs for easier portability.
unsigned long long int ulonglong
Definition: my_inttypes.h:55
unsigned char uchar
Definition: my_inttypes.h:51
intptr_t intptr
Definition: my_inttypes.h:69
long long int longlong
Definition: my_inttypes.h:54
#define MYF(v)
Definition: my_inttypes.h:96
void my_free(void *ptr)
Frees the memory pointed by the ptr.
Definition: my_memory.cc:80
Common header for many mysys elements.
Sid_map * global_sid_map
Definition: mysqld.cc:1822
uint test_flags
Definition: mysqld.cc:1319
const char * show_comp_option_name[]
Definition: mysqld.cc:1028
char system_time_zone_dst_off[30]
Definition: mysqld.cc:1471
bool opt_bin_log
Definition: mysqld.cc:1177
Gtid_state * gtid_state
Global state of GTIDs.
Definition: mysqld.cc:1823
Checkable_rwlock * global_sid_lock
Protects Gtid_state. See comment above gtid_state for details.
Definition: mysqld.cc:1821
struct System_variables max_system_variables
Definition: mysqld.cc:1536
char system_time_zone_dst_on[30]
Definition: mysqld.cc:1471
static char * path
Definition: mysqldump.cc:133
arg_type
Definition: mysqltest.cc:1141
int find_set(REP_SETS *sets, REP_SET *find)
Definition: mysqltest.cc:11192
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1054
Definition: buf0block_hint.cc:29
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:75
static Value err()
Create a Value object that represents an error condition.
Definition: json_binary.cc:909
Provides atomic access in shared-exclusive modes.
Definition: shared_spin_lock.h:78
Cursor end()
A past-the-end Cursor.
Definition: rules_table_service.cc:191
ulonglong getopt_double2ulonglong(double v)
Returns an ulonglong value containing a raw representation of the given double value.
Definition: my_getopt.cc:156
required string type
Definition: replication_group_member_actions.proto:33
bool throw_bounds_warning(THD *thd, const char *name, bool fixed, bool is_unsigned, longlong v)
Throw warning (error in STRICT mode) if value for variable needed bounding.
Definition: set_var.cc:549
"public" interface to sys_var - server configuration variables.
enum enum_mysql_show_type SHOW_TYPE
Definition: set_var.h:72
@ OPT_GLOBAL
Definition: set_var.h:92
plugin_ref ha_resolve_by_name(THD *thd, const LEX_CSTRING *name, bool is_temp_table)
Return the storage engine handlerton for the supplied name.
Definition: handler.cc:402
File containing constants that can be used throughout the server.
SHOW_COMP_OPTION
Definition: sql_const.h:227
constexpr const size_t STRING_BUFFER_USUAL_SIZE
Definition: sql_const.h:124
void push_warning_printf(THD *thd, Sql_condition::enum_severity_level severity, uint code, const char *format,...)
Push the warning to error list if there is still room in the list.
Definition: sql_error.cc:678
void plugin_unlock(THD *thd, plugin_ref plugin)
Definition: sql_plugin.cc:1254
#define my_plugin_lock_by_name(A, B, C)
Definition: sql_plugin.h:174
#define my_plugin_lock(A, B)
Definition: sql_plugin.h:176
LEX_CSTRING * plugin_name(st_plugin_int **ref)
Definition: sql_plugin_ref.h:94
Our own string classes, used pervasively throughout the executor.
bool validate_string(const CHARSET_INFO *cs, const char *str, size_t length, size_t *valid_length, bool *length_error)
Check if an input byte sequence is a valid character string of a given charset.
Definition: sql_string.cc:1157
@ SHOW_DOUBLE
Definition: status_var.h:39
@ SHOW_CHAR_PTR
Definition: status_var.h:36
@ SHOW_MY_BOOL
Definition: status_var.h:49
@ SHOW_CHAR
Definition: status_var.h:35
@ SHOW_LEX_STRING
Definition: status_var.h:54
char * set_to_string(THD *thd, LEX_STRING *result, ulonglong set, const char *lib[], bool quoted)
Definition: strfunc.cc:269
char * flagset_to_string(THD *thd, LEX_STRING *result, ulonglong set, const char *lib[])
Definition: strfunc.cc:302
A small wrapper class to pass getopt arguments as a pair to the Sys_var_* constructors.
Definition: sys_vars.h:173
int id
Definition: sys_vars.h:174
CMD_LINE(enum get_opt_arg_type getopt_arg_type, int getopt_id=0)
Definition: sys_vars.h:176
enum get_opt_arg_type arg_type
Definition: sys_vars.h:175
Holds information about a Gtid_set.
Definition: rpl_gtid.h:2369
Gtid_set * get_gtid_set() const
Return NULL if this is NULL, otherwise return the Gtid_set.
Definition: rpl_gtid.h:2375
This struct represents a specification of a GTID for a statement to be executed: either "AUTOMATIC",...
Definition: rpl_gtid.h:3790
static const int MAX_TEXT_LENGTH
Definition: rpl_gtid.h:3841
static const int MAX_TEXT_LENGTH
The maximal length of the textual representation of a SID, not including the terminating '\0'.
Definition: rpl_gtid.h:1100
rpl_sidno sidno
SIDNO of this Gtid.
Definition: rpl_gtid.h:1067
int to_string(const rpl_sid &sid, char *buf) const
Convert a Gtid to a string.
Definition: rpl_gtid_misc.cc:117
Definition: keycache.h:72
bool in_init
Definition: keycache.h:130
Definition: mysql_lex_string.h:39
const char * str
Definition: mysql_lex_string.h:40
size_t length
Definition: mysql_lex_string.h:41
Definition: mysql_lex_string.h:34
char * str
Definition: mysql_lex_string.h:35
size_t length
Definition: mysql_lex_string.h:36
Definition: sys_vars.h:749
uint number
Definition: sys_vars.h:751
const char * alias
Definition: sys_vars.h:750
Definition: system_variables.h:202
const char ** type_names
Definition: typelib.h:37
size_t count
Definition: typelib.h:35
const char * name
Definition: typelib.h:36
unsigned int * type_lengths
Definition: typelib.h:38
Definition: my_getopt.h:82
const char * comment
option comment, for autom.
Definition: my_getopt.h:112
longlong min_value
Min allowed value (for numbers)
Definition: my_getopt.h:122
ulonglong max_value
Max allowed value (for numbers)
Definition: my_getopt.h:123
longlong def_value
Default value.
Definition: my_getopt.h:121
long block_size
Value should be a mult.
Definition: my_getopt.h:126
const char * name
Name of the option.
Definition: my_getopt.h:93
void * u_max_value
The user def.
Definition: my_getopt.h:117
ulong var_type
GET_BOOL, GET_ULL, etc.
Definition: my_getopt.h:119
TYPELIB * typelib
Pointer to possible values.
Definition: my_getopt.h:118
void * value
A pointer to the variable value.
Definition: my_getopt.h:116
Definition: sql_plugin_ref.h:44
Definition: sql_connect.h:69
USER_RESOURCES user_resources
Definition: sql_connect.h:94
uint user_conn
Definition: sql_connect.h:51
#define NO_CMD_LINE
Definition: sys_vars.h:126
Sys_var_integer< ulong, GET_ULONG, SHOW_LONG, false > Sys_var_ulong
Definition: sys_vars.h:336
#define keycache_var_ptr(KC, OFF)
Definition: sys_vars.h:1293
#define keycache_var(KC, OFF)
Definition: sys_vars.h:1294
charset_enum
Definition: sys_vars.h:162
@ IN_SYSTEM_CHARSET
Definition: sys_vars.h:162
@ IN_FS_CHARSET
Definition: sys_vars.h:162
#define NON_PERSIST
Definition: sys_vars.h:144
#define MAX_SET(X)
Definition: sys_vars.h:1504
Sys_var_integer< uint, GET_UINT, SHOW_INT, false > Sys_var_uint
Definition: sys_vars.h:335
sys_var_chain all_sys_vars
Definition: set_var.cc:137
Sys_var_integer< int32, GET_UINT, SHOW_INT, false > Sys_var_int32
Definition: sys_vars.h:334
constexpr const unsigned long MAX_CONNECTIONS_DEFAULT
Maximum number of connections default value.
Definition: sys_vars.h:108
const char * fixup_enforce_gtid_consistency_command_line(char *value_arg)
Definition: sys_vars.cc:6525
#define session_var(THD, TYPE)
Definition: sys_vars.h:155
Sys_var_integer< long, GET_LONG, SHOW_SIGNED_LONG, true > Sys_var_long
Definition: sys_vars.h:341
constexpr const unsigned long TABLE_DEF_CACHE_DEFAULT
Definition: sys_vars.h:102
#define GLOBAL_VAR(X)
Definition: sys_vars.h:117
bool(* keycache_update_function)(THD *, KEY_CACHE *, ptrdiff_t, ulonglong)
Definition: sys_vars.h:1295
static const char * bool_values[3]
Definition: sys_vars.h:164
constexpr const unsigned long TABLE_OPEN_CACHE_DEFAULT
Definition: sys_vars.h:101
#define global_var(TYPE)
Definition: sys_vars.h:156
Sys_var_integer< ha_rows, GET_HA_ROWS, SHOW_HA_ROWS, false > Sys_var_harows
Definition: sys_vars.h:338
Sys_var_integer< ulonglong, GET_ULL, SHOW_LONGLONG, false > Sys_var_ulonglong
Definition: sys_vars.h:340
"protected" interface to sys_var - server configuration variables.
enum_variable_source
This enum values define how system variables are set.
Definition: system_variable_source_type.h:32
int find_type(const char *x, const TYPELIB *typelib, unsigned int flags)
Search after a string in a list of strings.
Definition: typelib.cc:86
uint64_t find_set_from_flags(const TYPELIB *lib, int default_name, uint64_t cur_set, uint64_t default_set, const char *str, unsigned int length, const char **err_pos, unsigned int *err_len)
Parse and apply a set of flag assingments.
Definition: typelib.cc:297
#define NULL
Definition: types.h:54
Time_zone * my_tz_find(const int64 displacement)
unsigned int uint
Definition: uca9-dump.cc:74
Item_result
Type of the user defined function return slot and arguments.
Definition: udf_registration_types.h:38
@ STRING_RESULT
not valid for UDFs
Definition: udf_registration_types.h:40
@ DECIMAL_RESULT
not valid for UDFs
Definition: udf_registration_types.h:44
@ REAL_RESULT
char *
Definition: udf_registration_types.h:41
@ INT_RESULT
double
Definition: udf_registration_types.h:42
unsigned long id[MAX_DEAD]
Definition: xcom_base.cc:509