1#ifndef SYS_VARS_H_INCLUDED
2#define SYS_VARS_H_INCLUDED
60#include "mysqld_error.h"
98template <
typename Struct_type,
typename Name_getter>
100template <
typename T, u
long ARGT, enum enum_mysql_show_type SHOWT,
bool SIGNED>
116#define VALID_RANGE(X, Y) X, Y
118#define BLOCK_SIZE(X) X
119#define GLOBAL_VAR(X) \
120 sys_var::GLOBAL, (((const char *)&(X)) - (char *)&global_system_variables), \
122#define SESSION_VAR(X) \
123 sys_var::SESSION, offsetof(System_variables, X), \
124 sizeof(((System_variables *)nullptr)->X)
125#define SESSION_ONLY(X) \
126 sys_var::ONLY_SESSION, offsetof(System_variables, X), \
127 sizeof(((System_variables *)nullptr)->X)
128#define NO_CMD_LINE CMD_LINE(NO_ARG, -1)
133#define NO_MUTEX_GUARD ((PolyLock *)nullptr)
134#define IN_BINLOG sys_var::SESSION_VARIABLE_IN_BINLOG
135#define NOT_IN_BINLOG sys_var::VARIABLE_NOT_IN_BINLOG
138#define PRE_UPDATE(X) X
139#define ON_UPDATE(X) X
140#define READ_ONLY sys_var::READONLY +
141#define NOT_VISIBLE sys_var::INVISIBLE +
142#define UNTRACKED_DEFAULT sys_var::TRI_LEVEL +
143#define HINT_UPDATEABLE sys_var::HINT_UPDATEABLE +
145#define PREALLOCATED sys_var::ALLOCATED +
146#define NON_PERSIST sys_var::NOTPERSIST +
147#define PERSIST_AS_READONLY sys_var::PERSIST_AS_READ_ONLY +
148#define SENSITIVE sys_var::SENSITIVE +
154#define REVERSE(X) ~(X)
155#define DEPRECATED_VAR(X) X
157#define session_var(THD, TYPE) (*(TYPE *)session_var_ptr(THD))
158#define global_var(TYPE) (*(TYPE *)global_var_ptr())
160#define GET_HA_ROWS GET_ULL
196template <
typename T, u
long ARGT, enum enum_mysql_show_type SHOWT,
bool SIGNED>
200 const char *name_arg,
const char *
comment,
int flag_args,
201 ptrdiff_t off,
size_t size [[maybe_unused]],
CMD_LINE getopt,
202 T min_val,
T max_val,
T def_val, uint block_size,
207 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
210 binlog_status_arg, on_check_func, on_update_func,
211 substitute, parse_flag) {
213 if ((min_val % block_size) != 0)
214 min_val += block_size - (min_val % block_size);
224 assert(
size ==
sizeof(
T));
225 assert(min_val <= def_val);
226 assert(def_val <= max_val);
227 assert(block_size > 0);
229 assert(def_val % block_size == 0);
380 const char *deprecation_substitute_arg,
381 sys_var *persisted_alias,
bool is_persisted_deprecated)
388 persisted_alias, is_persisted_deprecated),
465 std::string_view keycache_name)
override {
469 std::string_view keycache_name)
override {
559 m_comment = std::string(
"This option is deprecated. Use ") +
582 binlog_status_arg, on_check_func, on_update_func, substitute,
597 if (!(res = var->value->val_str(&
str)))
599 else if (!(var->save_result.ulonglong_value =
603 var->save_result.ulonglong_value--;
605 const longlong tmp = var->value->val_int();
609 var->save_result.ulonglong_value = tmp;
636 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
637 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
642 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
644 values, def_val,
lock, binlog_status_arg, on_check_func,
645 on_update_func, substitute, parse_flag) {
649 assert(
size ==
sizeof(ulong));
671 std::string_view)
override {
672 return pointer_cast<const uchar *>(
689 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
690 size_t size [[maybe_unused]],
CMD_LINE getopt,
bool def_val,
695 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
698 on_check_func, on_update_func, substitute, parse_flag) {
702 assert(
size ==
sizeof(
bool));
802 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
804 uint value_count_arg, uint def_val, uint command_line_no_value_arg,
809 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
812 on_check_func, on_update_func, substitute, parse_flag),
827 assert(
size ==
sizeof(ulong));
861 if (value_str ==
nullptr) {
871 value = strtol(value_str, &
end, 10);
873 if (
end > value_str && *
end ==
'\0')
891 if (!res)
return true;
897 &valid_len, &len_error))
901 if (
value == -1)
return true;
1012 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1014 enum charset_enum is_os_charset_arg,
const char *def_val,
1019 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1022 binlog_status_arg, on_check_func, on_update_func, substitute,
1027 assert(
size ==
sizeof(
char *));
1032 flags &= ~ALLOCATED;
1089 :
const_cast<char *
>(
"");
1105 enum charset_enum is_os_charset_arg,
const char *def_val)
1107 is_os_charset_arg, def_val) {}
1112 std::string_view keycache_name)
override {
1116 static const char *altered_value =
"some-other-version";
1117 const uchar *altered_value_ptr = pointer_cast<uchar *>(&altered_value);
1118 value = altered_value_ptr;
1157 std::string_view)
override {
1159 return proxy_user[0] ? pointer_cast<const uchar *>(proxy_user) :
nullptr;
1171 std::string_view)
override {
1174 return external_user.
length ? pointer_cast<const uchar *>(external_user.
str)
1194 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1196 enum charset_enum is_os_charset_arg,
const char *def_val,
1201 const char *substitute =
nullptr)
1203 getopt, is_os_charset_arg, def_val,
lock,
1204 binlog_status_arg, on_check_func, on_update_func,
1232 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
1237 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1240 binlog_status_arg, on_check_func, on_update_func, substitute,
1278 std::string_view)
override {
1294#define KEYCACHE_VAR(X) \
1295 sys_var::GLOBAL, offsetof(KEY_CACHE, X), sizeof(((KEY_CACHE *)nullptr)->X)
1296#define keycache_var_ptr(KC, OFF) (((uchar *)(KC)) + (OFF))
1297#define keycache_var(KC, OFF) (*(ulonglong *)keycache_var_ptr(KC, OFF))
1323 const char *substitute =
nullptr)
1325 name_arg,
comment, flag_args, -1,
1326 size, getopt, min_val, max_val, def_val, block_size,
lock,
1327 binlog_status_arg, on_check_func,
nullptr, substitute),
1346 "is deprecated and will be removed in a "
1364 if (key_cache->
in_init)
return true;
1369 std::string_view keycache_name)
override {
1370 if (!keycache_name.empty())
1372 ER_WARN_DEPRECATED_SYNTAX,
1373 "@@global.%.*s.%s syntax "
1374 "is deprecated and will be removed in a "
1376 static_cast<int>(keycache_name.size()),
1377 keycache_name.data(),
name.
str);
1395 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1396 size_t size [[maybe_unused]],
CMD_LINE getopt,
double min_val,
1397 double max_val,
double def_val,
PolyLock *
lock =
nullptr,
1401 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1405 binlog_status_arg, on_check_func, on_update_func, substitute,
1411 assert(min_val <= max_val);
1412 assert(min_val <= def_val);
1413 assert(max_val >= def_val);
1414 assert(
size ==
sizeof(
double));
1487 const char *name_arg,
const char *
comment,
int, ptrdiff_t off,
1488 size_t size,
CMD_LINE getopt, uint min_val, uint max_val, uint def_val,
1493 const char *substitute =
nullptr)
1495 max_val, def_val, block_size,
lock, binlog_status_arg,
1496 on_check_func, on_update_func, substitute) {}
1498 std::string_view keycache_name)
override {
1507#define MAX_SET(X) ((((1ULL << ((X)-1)) - 1) << 1) | 1)
1526 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1527 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
1532 const char *substitute =
nullptr)
1534 values, def_val,
lock, binlog_status_arg, on_check_func,
1535 on_update_func, substitute) {
1541 assert(strcmp(values[
typelib.
count - 1],
"default") == 0);
1565 static_cast<uint
>(res->
length()), &
error, &error_len);
1574 if ((tmp < 0 && !var->
value->unsigned_flag) ||
1603 std::string_view)
override {
1626 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1627 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
1632 const char *substitute =
nullptr)
1634 values, def_val,
lock, binlog_status_arg, on_check_func,
1635 on_update_func, substitute) {
1657 nullptr, &
error, &error_len, ¬_used);
1671 if ((tmp < 0 && !var->
value->unsigned_flag) ||
1700 std::string_view)
override {
1729 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1730 size_t size [[maybe_unused]],
CMD_LINE getopt,
int plugin_type_arg,
1735 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1738 binlog_status_arg, on_check_func, on_update_func, substitute,
1743 assert(getopt.
id == -1);
1775 if (oldval != newval) {
1795 pname.
str = *default_value;
1816 std::string_view)
override {
1830#if defined(ENABLED_DEBUG_SYNC)
1834class Sys_var_debug_sync :
public sys_var {
1837 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
1839 enum binlog_status_enum binlog_status_arg = VARIABLE_NOT_IN_BINLOG,
1840 on_check_function on_check_func =
nullptr,
1841 on_update_function on_update_func =
nullptr,
1842 const char *substitute =
nullptr,
int parse_flag = PARSE_NORMAL)
1845 binlog_status_arg, on_check_func, on_update_func, substitute,
1847 assert(
scope() == ONLY_SESSION);
1877 std::string_view)
override {
1878 return debug_sync_value_ptr(running_thd);
1921 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1928 const char *substitute =
nullptr)
1931 on_check_func, on_update_func, substitute) {
1937 assert(getopt.
id == -1);
1958 std::string_view)
override {
2001 const char *substitute =
nullptr)
2003 getopt, min_val, max_val, 0, block_size,
lock,
2004 binlog_status_arg, on_check_func,
nullptr,
2009 assert(getopt.
id == -1);
2019 var->
value =
nullptr;
2026 std::string_view)
override {
2048 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
2054 const char *substitute =
nullptr)
2056 min_val, max_val, 0.0,
lock, binlog_status_arg,
2057 on_check_func,
nullptr, substitute),
2061 assert(getopt.
id == -1);
2071 var->
value =
nullptr;
2078 std::string_view)
override {
2101 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2106 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2109 on_check_func, on_update_func, substitute, parse_flag) {
2111 assert(getopt.
id == -1);
2112 assert(
lock ==
nullptr);
2138 return pointer_cast<const uchar *>(
2163 const char *substitute =
nullptr)
2196template <
typename Struct_type,
typename Name_getter>
2200 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2201 size_t size [[maybe_unused]],
CMD_LINE getopt,
void *def_val,
2206 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2209 binlog_status_arg, on_check_func, on_update_func, substitute,
2220 assert(getopt.
id == -1);
2221 assert(
size ==
sizeof(
void *));
2240 const Struct_type *ptr =
2243 strcpy(def_val, pointer_cast<const char *>(Name_getter(ptr).get_name()));
2249 std::string_view)
override {
2250 const Struct_type *ptr =
session_var(target_thd,
const Struct_type *);
2251 return ptr ? Name_getter(ptr).get_name() :
nullptr;
2254 const Struct_type *ptr =
global_var(
const Struct_type *);
2255 return ptr ? Name_getter(ptr).get_name() :
nullptr;
2272 ptrdiff_t off,
size_t size [[maybe_unused]],
CMD_LINE getopt,
2277 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2280 binlog_status_arg, on_check_func, on_update_func, substitute,
2282 assert(getopt.
id == -1);
2291 if (!res)
return true;
2318 std::string_view)
override {
2328 return pointer_cast<const uchar *>(
2332 return pointer_cast<const uchar *>(
2349 int flag_args, ptrdiff_t off,
size_t size,
2350 CMD_LINE getopt,
const char *values[],
2355 def_val,
lock, binlog_status_arg, on_check_func) {}
2371 int flag_args, ptrdiff_t off,
size_t size,
2376 lock, binlog_status_arg, on_check_func) {}
2387 int flag_args, ptrdiff_t off,
size_t size,
2388 CMD_LINE getopt,
const char *values[],
2393 size, getopt, values, def_val,
lock, binlog_status_arg,
2404 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2405 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *def_val,
2410 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2413 binlog_status_arg, on_check_func, on_update_func, substitute,
2439 std::string_view)
override {
2447 return (
uchar *)ret;
2455#ifdef HAVE_GTID_NEXT_LIST
2463class Sys_var_gtid_set :
public sys_var {
2466 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2468 enum binlog_status_enum binlog_status_arg = VARIABLE_NOT_IN_BINLOG,
2469 on_check_function on_check_func = 0,
2470 on_update_function on_update_func = 0,
const char *substitute = 0,
2471 int parse_flag = PARSE_NORMAL)
2474 binlog_status_arg, on_check_func, on_update_func, substitute,
2487 char *ptr = (
char *)(
intptr)option.def_value;
2499 if (res ==
nullptr) {
2503 assert(res->
ptr() !=
nullptr);
2515 const std::string &)
override {
2519 if (gs ==
nullptr)
return nullptr;
2622 time_t current_time = time(
nullptr);
2625 current_time = 1616893190;
2629 current_time = 1616893200;
2633 localtime_r(¤t_time, &tm_tmp);
2645 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2650 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2653 binlog_status_arg, on_check_func, on_update_func, substitute,
2678 if (!res)
return true;
2732 std::string_view)
override {
2734 char *
buf =
nullptr;
2735 const bool remote = (target_thd != running_thd);
2743#ifdef HAVE_GTID_NEXT_LIST
2745 target_thd->owned_gtid_set.get_string_length() + 1);
2748 target_thd->owned_gtid_set.to_string(
buf);
2785 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2786 size_t size,
CMD_LINE getopt,
const char *values[], uint def_val,
2791 def_val,
lock, binlog_status_arg, on_check_func) {}
2799 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2807 lock, binlog_status_arg, on_check_func) {}
2815 int flag_args, ptrdiff_t off,
size_t size,
2820 size, getopt, def_val,
lock, binlog_status_arg,
Kerberos Client Authentication nullptr
Definition: auth_kerberos_client_plugin.cc:247
void rdlock()
Acquire the read lock.
Definition: rpl_gtid.h:486
void wrlock()
Acquire the write lock.
Definition: rpl_gtid.h:495
void unlock()
Release the lock (whether it is a write or read lock).
Definition: rpl_gtid.h:506
Definition: sql_error.h:226
Represents a set of GTIDs.
Definition: rpl_gtid.h:1557
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:607
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:942
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:807
const Gtid_set * get_executed_gtids() const
Definition: rpl_gtid.h:3378
const Gtid_set * get_lost_gtids() const
Return a pointer to the Gtid_set that contains the lost gtids.
Definition: rpl_gtid.h:3373
const Owned_gtids * get_owned_gtids() const
Return a pointer to the Owned_gtids that contains the owned gtids.
Definition: rpl_gtid.h:3394
int32 get_anonymous_ownership_count()
Return the number of clients that hold anonymous ownership.
Definition: rpl_gtid.h:3038
virtual double val_real()=0
virtual longlong val_int()=0
virtual Item_result result_type() const
Definition: item.h:1451
bool unsigned_flag
Definition: item.h:3717
virtual String * val_str(String *str)=0
Represents the set of GTIDs that are owned by some thread.
Definition: rpl_gtid.h:2587
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:2683
int to_string(char *out) const
Write a string representation of this Owned_gtids to the given buffer.
Definition: rpl_gtid.h:2657
wrapper to hide a mutex and an rwlock under a common interface
Definition: sys_vars_shared.h:52
char * mem_strdup(const char *str)
Definition: sql_class.h:437
LEX_CSTRING external_user() const
Getter method for member m_external_user.
Definition: sql_security_ctx.h:455
LEX_CSTRING proxy_user() const
Getter method for member m_proxy_user.
Definition: sql_security_ctx.cc:1108
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:73
@ SL_WARNING
Definition: sql_error.h:64
Using this class is fraught with peril, and you need to be very careful when doing so.
Definition: sql_string.h:167
LEX_CSTRING lex_cstring() const
Definition: sql_string.h:297
const CHARSET_INFO * charset() const
Definition: sql_string.h:240
static bool needs_conversion(size_t arg_length, const CHARSET_INFO *cs_from, const CHARSET_INFO *cs_to, size_t *offset)
Checks that the source string can be just copied to the destination string without conversion.
Definition: sql_string.h:650
const char * ptr() const
Definition: sql_string.h:249
size_t length() const
Definition: sql_string.h:241
A sys_var that is an alias for another sys_var.
Definition: sys_vars.h:353
bool set_user(const char *usr) override
Definition: sys_vars.h:435
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:379
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:459
const char * get_host() override
Definition: sys_vars.h:437
ulonglong get_max_value() override
Definition: sys_vars.h:410
sys_var & m_base_var
Definition: sys_vars.h:355
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:456
bool is_non_persistent() override
Definition: sys_vars.h:418
void set_timestamp(ulonglong ts) override
Definition: sys_vars.h:444
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:464
void cleanup() override
All the cleanup procedures should be performed here.
Definition: sys_vars.h:401
Sys_var_alias(const char *name_arg, sys_var &base_var)
Definition: sys_vars.h:395
ulonglong get_timestamp() const override
Definition: sys_vars.h:439
void set_source(enum_variable_source src) override
Definition: sys_vars.h:429
void update_default(longlong new_def_value) override
Definition: sys_vars.h:405
longlong get_default() override
Definition: sys_vars.h:408
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:450
void set_timestamp() override
Definition: sys_vars.h:443
sys_var & get_base_var()
Definition: sys_vars.h:399
void set_user_host(THD *thd) override
Definition: sys_vars.h:442
const char * get_user() override
Definition: sys_vars.h:436
bool set_source_name(const char *path) override
Definition: sys_vars.h:432
void set_arg_source(get_opt_arg_source *arg_source) override
Definition: sys_vars.h:412
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:468
void set_is_plugin(bool is_plugin) override
Definition: sys_vars.h:415
bool check_update_type(Item_result type) override
Definition: sys_vars.h:422
void global_save_default(THD *thd, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:453
const char * get_source_name() override
Definition: sys_vars.h:426
ulong get_var_type() override
Returns variable type.
Definition: sys_vars.h:411
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:419
enum_variable_source get_source() override
Definition: sys_vars.h:425
sys_var_pluginvar * cast_pluginvar() override
downcast for sys_var_pluginvar.
Definition: sys_vars.h:402
longlong get_min_value() override
Definition: sys_vars.h:409
bool set_host(const char *hst) override
Definition: sys_vars.h:438
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:447
Definition: sys_vars.h:2812
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:2814
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:7163
The class for bit variables - a variant of boolean that stores the value in a bit.
Definition: sys_vars.h:1909
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:1920
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1951
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:1954
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:1957
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1948
void set(uchar *ptr, ulonglong value)
Definition: sys_vars.h:1912
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1940
ulonglong bitmask
Definition: sys_vars.h:1910
bool reverse_semantics
Definition: sys_vars.h:1911
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1964
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1944
The class for boolean variables - a variant of ENUM variables with the fixed list of values of { OFF ...
Definition: sys_vars.h:686
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:709
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:688
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:713
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:720
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:717
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:704
Abstract base class for read-only variables (global or session) of string type where the value is gen...
Definition: sys_vars.h:2544
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2557
Sys_var_charptr_func(const char *name_arg, const char *comment, flag_enum flag_arg)
Definition: sys_vars.h:2546
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:2578
bool check_update_type(Item_result) override
Definition: sys_vars.h:2574
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2570
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2567
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2561
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2582
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2566
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2565
The class for string variables.
Definition: sys_vars.h:1009
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1035
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1096
void cleanup() override
All the cleanup procedures should be performed here.
Definition: sys_vars.h:1030
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:1092
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1076
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1070
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1059
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4085
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:1011
@session.dbug and @global.dbug variables.
Definition: sys_vars.h:1229
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1244
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:1268
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:1277
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1288
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1283
bool session_update(THD *, set_var *var) override
Definition: sys_vars.h:1255
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1263
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:1231
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:1273
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1269
A deprecated alias for a variable.
Definition: sys_vars.h:552
std::string m_comment
Definition: sys_vars.h:554
Sys_var_deprecated_alias(const char *name_arg, sys_var &base_var)
Definition: sys_vars.h:557
The class for floating point variables.
Definition: sys_vars.h:1392
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1428
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:1441
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1424
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:1394
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1438
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1432
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1416
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1435
Definition: sys_vars.h:2796
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:2798
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4553
A class for @global.binlog_checksum that has a specialized update method.
Definition: sys_vars.h:2384
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4101
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:2386
The class for ENUM variables - variables that take one value from a fixed list of values.
Definition: sys_vars.h:633
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:660
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:656
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:666
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:635
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:670
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:663
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:675
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:651
Definition: sys_vars.h:1163
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:1170
Sys_var_external_user(const char *name_arg, const char *comment_arg, enum charset_enum is_os_charset_arg)
Definition: sys_vars.h:1165
The class for flagset variables - a variant of SET that allows in-place editing (turning on/off indiv...
Definition: sys_vars.h:1523
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1587
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:1602
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1583
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1608
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1594
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1544
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1591
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:1525
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:1597
Class for @global.gtid_executed.
Definition: sys_vars.h:2591
Sys_var_gtid_executed(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2593
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2596
Definition: sys_vars.h:2782
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:2784
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:4241
Class for gtid_next.
Definition: sys_vars.h:2401
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2430
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:2438
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:4135
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2449
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2431
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2419
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2423
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2434
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2435
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:2403
Definition: sys_vars.h:2725
Sys_var_gtid_owned(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2727
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2768
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:2731
Class for @session.gtid_purged.
Definition: sys_vars.h:2642
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:6509
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:2719
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2665
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:2673
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2691
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2656
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2695
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:2644
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2661
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2669
A subclass of Sys_var_have to return dynamic values.
Definition: sys_vars.h:2151
static enum SHOW_COMP_OPTION dummy_
Definition: sys_vars.h:2180
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2174
enum SHOW_COMP_OPTION(* func_)(THD *)
Definition: sys_vars.h:2179
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:2161
The class for read-only variables that show whether a particular feature is supported by the server.
Definition: sys_vars.h:2098
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2126
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:2100
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2130
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2137
bool check_update_type(Item_result) override
Definition: sys_vars.h:2141
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2118
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2131
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:2133
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2122
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2132
Sys_var_integer template is used to generate Sys_var_* classes for variables that represent the value...
Definition: sys_vars.h:197
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:315
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:199
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:232
T * max_var_ptr()
Definition: sys_vars.h:328
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:311
bool check_update_type(Item_result type) override
Definition: sys_vars.h:308
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:300
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:318
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:304
The class for keycache_* variables.
Definition: sys_vars.h:1312
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:1368
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:1316
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1335
keycache_update_function keycache_update
Definition: sys_vars.h:1313
The class for string variables.
Definition: sys_vars.h:1191
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:1193
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1210
The class for the max_user_connections.
Definition: sys_vars.h:1484
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:1486
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:1497
A variant of enum where:
Definition: sys_vars.h:749
uint command_line_no_value
Definition: sys_vars.h:994
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:993
const uint value_count
The number of allowed numeric values.
Definition: sys_vars.h:983
uint alias_count
The number of elements of aliases (computed in the constructor).
Definition: sys_vars.h:987
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:954
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:928
const ALIAS * aliases
Array of all textual aliases.
Definition: sys_vars.h:985
bool check_update_type(Item_result type) override
Definition: sys_vars.h:913
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:965
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:916
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:941
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:834
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:885
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:801
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:961
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:855
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:976
The class for variables which value is a plugin.
Definition: sys_vars.h:1724
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1812
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1745
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1788
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:1808
void global_save_default(THD *thd, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1792
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:1815
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1780
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:1728
void do_update(plugin_ref *valptr, plugin_ref newval)
Definition: sys_vars.h:1773
int plugin_type
Definition: sys_vars.h:1725
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1784
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1822
Definition: sys_vars.h:1125
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:1148
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:1156
bool check_update_type(Item_result) override
Definition: sys_vars.h:1153
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:1140
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:1136
Sys_var_proxy_user(const char *name_arg, const char *comment, enum charset_enum is_os_charset_arg)
Definition: sys_vars.h:1127
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:1144
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:1149
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1150
Similar to Sys_var_session_special, but with double storage.
Definition: sys_vars.h:2039
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2073
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2070
session_special_read_double_function read_func
Definition: sys_vars.h:2043
double(* session_special_read_double_function)(THD *thd)
Definition: sys_vars.h:2041
session_special_update_function update_func
Definition: sys_vars.h:2044
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2074
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:2047
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2066
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2063
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:2077
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2082
bool(* session_special_update_function)(THD *thd, set_var *var)
Definition: sys_vars.h:2040
The class for variables that have a special meaning for a session, such as @timestamp or @rnd_seed1,...
Definition: sys_vars.h:1986
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2014
bool(* session_special_update_function)(THD *thd, set_var *var)
Definition: sys_vars.h:1987
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2011
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2018
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2030
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:1994
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2021
ulonglong(* session_special_read_function)(THD *thd)
Definition: sys_vars.h:1988
session_special_read_function read_func
Definition: sys_vars.h:1990
session_special_update_function update_func
Definition: sys_vars.h:1991
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2022
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:2025
The class for SET variables - variables taking zero or more values from the given list.
Definition: sys_vars.h:1623
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1680
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:1643
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1705
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:1625
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1688
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1691
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:1694
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1684
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:1699
Generic class for variables for storing entities that are internally represented as structures,...
Definition: sys_vars.h:2197
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2245
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:2239
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:2248
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2224
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:2235
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:2199
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:2228
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2253
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2232
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2223
Class for @global.system_time_zone.
Definition: sys_vars.h:2613
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2620
Sys_var_system_time_zone(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2615
The class for test_flags (core_file for now).
Definition: sys_vars.h:1456
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:1468
bool test_flag_value
Definition: sys_vars.h:1458
uint test_flag_mask
Definition: sys_vars.h:1459
Sys_var_test_flag(const char *name_arg, const char *comment, uint mask)
Definition: sys_vars.h:1462
Class representing the 'transaction_isolation' system variable.
Definition: sys_vars.h:2346
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:5010
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:2348
Class representing the tx_read_only system variable for setting default transaction access mode.
Definition: sys_vars.h:2368
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:5079
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:2370
Helper class for variables that take values from a TYPELIB.
Definition: sys_vars.h:568
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:573
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:591
TYPELIB typelib
Definition: sys_vars.h:570
bool check_update_type(Item_result type) override
Definition: sys_vars.h:614
The class for variables that store time zones.
Definition: sys_vars.h:2269
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:2286
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2300
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:2311
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:2271
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2335
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:2304
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2308
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:2317
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:2314
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2331
Definition: sys_vars.h:1101
~Sys_var_version() override=default
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:1111
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:1103
std::string_view get_keycache_name() const
Definition: set_var.h:684
bool is_keycache_var() const
Definition: set_var.h:661
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:36
Gtid owned_gtid
The GTID of the currently owned transaction.
Definition: sql_class.h:3820
static const int OWNED_SIDNO_GTID_SET
Definition: sql_class.h:3821
double double_value
Definition: sql_class.h:2862
static const int OWNED_SIDNO_ANONYMOUS
Definition: sql_class.h:3822
Session_sysvar_resource_manager session_sysvar_res_mgr
Definition: sql_class.h:4502
void * alloc(size_t size)
Definition: sql_lexer_thd.h:50
bool bool_value
Definition: sql_class.h:2858
System_variables variables
Definition: sql_lexer_thd.h:64
mysql::gtid::Tsid owned_tsid
For convenience, this contains the TSID component of the GTID stored in owned_gtid.
Definition: sql_class.h:3828
char * strmake(const char *str, size_t size) const
Definition: sql_lexer_thd.h:52
Security_context * security_context() const
Definition: sql_class.h:1350
bool time_zone_used
Definition: sql_class.h:2824
ulonglong ulonglong_value
Definition: sql_class.h:2861
union THD::@182 sys_var_tmp
const USER_CONN * get_user_connect() const
Definition: sql_class.h:2471
This class represents abstract time zone and provides basic interface for MYSQL_TIME <-> my_time_t co...
Definition: tztime.h:49
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:983
ulonglong ulonglong_value
for all integer, set, enum sysvars
Definition: set_var.h:989
const enum_var_type type
Definition: set_var.h:986
const System_variable_tracker m_var_tracker
Definition: set_var.h:998
Time_zone * time_zone
for Sys_var_tz
Definition: set_var.h:992
Item * value
the expression that provides the new value of the variable
Definition: set_var.h:985
LEX_STRING string_value
for Sys_var_charptr and others
Definition: set_var.h:993
union set_var::@177 save_result
Resolver of the variable at the left hand side of the assignment.
plugin_ref plugin
for Sys_var_plugin
Definition: set_var.h:991
const void * ptr
for Sys_var_struct
Definition: set_var.h:994
double double_value
for Sys_var_double
Definition: set_var.h:990
Definition: sql_plugin_var.h:211
A class representing one system variable - that is something that can be accessed as @global....
Definition: set_var.h:107
virtual bool global_update(THD *thd, set_var *var)=0
virtual bool set_source_name(const char *path)
Definition: set_var.h:243
my_option option
min, max, default values are stored here
Definition: set_var.h:178
my_option * get_option()
Definition: set_var.h:257
bool(* on_update_function)(sys_var *self, THD *thd, enum_var_type type)
Definition: set_var.h:172
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:110
virtual void set_arg_source(get_opt_arg_source *)
Definition: set_var.h:236
virtual const char * get_host()
Definition: set_var.h:251
virtual ulonglong get_max_value()
Definition: set_var.h:229
virtual void set_user_host(THD *thd)
Definition: set_var.cc:458
uchar * global_var_ptr()
Definition: set_var.cc:405
enum sys_var::binlog_status_enum binlog_status
Global system variable attributes.
uchar * session_var_ptr(THD *thd)
A pointer to a storage area of the variable, to the raw data.
Definition: set_var.cc:401
flag_enum
Definition: set_var.h:128
@ SESSION
Definition: set_var.h:130
@ GLOBAL
Definition: set_var.h:129
@ READONLY
Definition: set_var.h:133
@ ALLOCATED
Definition: set_var.h:134
@ NOTPERSIST
Definition: set_var.h:137
@ PERSIST_AS_READ_ONLY
There can be some variables which needs to be set before plugin is loaded.
Definition: set_var.h:148
@ ONLY_SESSION
Definition: set_var.h:131
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:250
virtual void cleanup()
All the cleanup procedures should be performed here.
Definition: set_var.h:212
virtual longlong get_min_value()
Definition: set_var.h:228
virtual void set_is_plugin(bool)
Definition: set_var.h:237
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:161
@ VARIABLE_NOT_IN_BINLOG
Definition: set_var.h:162
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:189
ptrdiff_t offset
offset to the value from global_system_variables
Definition: set_var.h:180
virtual bool set_user(const char *usr)
Definition: set_var.h:247
bool(* on_check_function)(sys_var *self, THD *thd, set_var *var)
Definition: set_var.h:170
virtual enum_variable_source get_source()
Definition: set_var.h:238
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:397
on_check_function on_check
Definition: set_var.h:181
const CHARSET_INFO * charset(THD *thd)
Definition: set_var.cc:593
virtual ulong get_var_type()
Returns variable type.
Definition: set_var.h:235
virtual const char * get_source_name()
Definition: set_var.h:239
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:186
int scope() const
Definition: set_var.h:278
virtual void set_timestamp()
Definition: set_var.h:258
const SHOW_TYPE show_val_type
what value_ptr() returns for sql_show.cc
Definition: set_var.h:177
on_update_function on_update
Definition: set_var.h:187
int flags
or'ed flag_enum values
Definition: set_var.h:175
static const int PARSE_NORMAL
Definition: set_var.h:156
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:392
virtual void update_default(longlong new_def_value)
Definition: set_var.h:224
virtual bool set_host(const char *hst)
Definition: set_var.h:252
PolyLock * guard
second lock that protects the variable
Definition: set_var.h:179
virtual longlong get_default()
Definition: set_var.h:227
virtual bool is_non_persistent()
Definition: set_var.h:260
virtual sys_var_pluginvar * cast_pluginvar()
downcast for sys_var_pluginvar.
Definition: set_var.h:217
const char *const deprecation_substitute
Definition: set_var.h:188
virtual ulonglong get_timestamp() const
Definition: set_var.h:255
bool(* pre_update_function)(sys_var *self, THD *thd, set_var *var)
Definition: set_var.h:171
bool is_readonly() const
Definition: set_var.h:280
virtual bool session_update(THD *thd, set_var *var)=0
int m_parse_flag
either PARSE_EARLY or PARSE_NORMAL.
Definition: set_var.h:176
virtual void set_source(enum_variable_source src)
Definition: set_var.h:240
static char buf[MAX_BUF]
Definition: conf_to_src.cc:74
MYSQL_STRINGS_EXPORT 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:202
#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:122
void my_error(int nr, myf MyFlags,...)
Fill in and print a previously registered error message.
Definition: my_error.cc:216
ALWAYS_INLINE const char * base_name(const char *A)
Definition: my_sys.h:709
#define MYSQL_STORAGE_ENGINE_PLUGIN
Definition: plugin.h:116
MYSQL_STRINGS_EXPORT 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:99
#define T
Definition: jit_executor_value.cc:373
Key cache variable structures.
KEY_CACHE * dflt_key_cache
Definition: keycache.h:135
KEY_CACHE * create_key_cache(std::string_view name)
Create a MyISAM Multiple Key Cache.
Definition: keycaches.cc:76
KEY_CACHE * get_key_cache(std::string_view cache_name)
Resolve a MyISAM Multiple Key Cache by name.
Definition: keycaches.cc:68
KEY_CACHE zero_key_cache
@nonexistent_cache.param->value_ptr() points here
Definition: keycaches.cc:66
static std::string to_string(const LEX_STRING &str)
Definition: lex_string.h:50
#define comment
Definition: lexyy.cc:959
@ READ_ONLY
The opened file can be only read.
A better implementation of the UNIX ctype(3) library.
int my_strcasecmp(const CHARSET_INFO *cs, const char *s1, const char *s2)
Definition: m_ctype.h:651
MYSQL_STRINGS_EXPORT CHARSET_INFO my_charset_latin1
Definition: ctype-latin1.cc:365
MYSQL_PLUGIN_IMPORT CHARSET_INFO * system_charset_info
Definition: mysqld.cc:1564
static mi_bit_type mask[]
Definition: mi_packrec.cc:141
This file includes constants used by all storage engines.
Header for compiler-dependent features.
#define DBUG_SET_INITIAL(a1)
Definition: my_dbug.h:192
#define DBUG_EXECUTE_IF(keyword, a1)
Definition: my_dbug.h:171
#define DBUG_PRINT(keyword, arglist)
Definition: my_dbug.h:181
#define DBUG_EXPLAIN(buf, len)
Definition: my_dbug.h:199
#define DBUG_SET(a1)
Definition: my_dbug.h:191
#define DBUG_EXPLAIN_INITIAL(buf, len)
Definition: my_dbug.h:200
#define DBUG_POP()
Definition: my_dbug.h:190
#define DBUG_TRACE
Definition: my_dbug.h:146
#define GET_NO_ARG
Definition: my_getopt.h:44
get_opt_arg_type
Enumeration of the my_option::arg_type attributes.
Definition: my_getopt.h:81
@ OPT_ARG
Definition: my_getopt.h:81
@ NO_ARG
Definition: my_getopt.h:81
#define GET_STR
Definition: my_getopt.h:52
#define GET_DOUBLE
Definition: my_getopt.h:57
ulonglong getopt_ull_limit_value(ulonglong num, const struct my_option *optp, bool *fix)
Definition: my_getopt.cc:1262
#define GET_SET
Definition: my_getopt.h:56
#define GET_ENUM
Definition: my_getopt.h:55
#define GET_FLAGSET
Definition: my_getopt.h:58
#define GET_STR_ALLOC
Definition: my_getopt.h:53
ulonglong getopt_double2ulonglong(double)
Returns an ulonglong value containing a raw representation of the given double value.
Definition: my_getopt.cc:160
double getopt_double_limit_value(double num, const struct my_option *optp, bool *fix)
Definition: my_getopt.cc:1302
double getopt_ulonglong2double(ulonglong)
Returns the double value which corresponds to the given raw representation.
Definition: my_getopt.cc:171
ulonglong max_of_int_range(int var_type)
Maximum possible value for an integer GET_* variable type.
Definition: my_getopt.cc:1163
#define GET_ASK_ADDR
Definition: my_getopt.h:71
#define GET_BOOL
Definition: my_getopt.h:45
longlong getopt_ll_limit_value(longlong, const struct my_option *, bool *fix)
Definition: my_getopt.cc:1190
Some integer typedefs for easier portability.
unsigned long long int ulonglong
Definition: my_inttypes.h:56
unsigned char uchar
Definition: my_inttypes.h:52
intptr_t intptr
Definition: my_inttypes.h:70
long long int longlong
Definition: my_inttypes.h:55
#define MYF(v)
Definition: my_inttypes.h:97
void my_free(void *ptr)
Frees the memory pointed by the ptr.
Definition: my_memory.cc:81
uint test_flags
Definition: mysqld.cc:1348
const char * show_comp_option_name[]
Definition: mysqld.cc:1058
char system_time_zone_dst_off[30]
Definition: mysqld.cc:1498
bool opt_bin_log
Definition: mysqld.cc:1210
Tsid_map * global_tsid_map
Definition: mysqld.cc:1850
Gtid_state * gtid_state
Global state of GTIDs.
Definition: mysqld.cc:1851
Checkable_rwlock * global_tsid_lock
Protects Gtid_state. See comment above gtid_state for details.
Definition: mysqld.cc:1849
struct System_variables max_system_variables
Definition: mysqld.cc:1558
char system_time_zone_dst_on[30]
Definition: mysqld.cc:1498
static char * path
Definition: mysqldump.cc:150
arg_type
Definition: mysqltest.cc:1130
int find_set(REP_SETS *sets, REP_SET *find)
Definition: mysqltest.cc:11421
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1084
Definition: buf0block_hint.cc:30
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:76
static Value err()
Create a Value object that represents an error condition.
Definition: json_binary.cc:905
Provides atomic access in shared-exclusive modes.
Definition: shared_spin_lock.h:79
ValueType value(const std::optional< ValueType > &v)
Definition: gtid.h:83
size_t size(const char *const c)
Definition: base64.h:46
Cursor end()
A past-the-end Cursor.
Definition: rules_table_service.cc:192
required string type
Definition: replication_group_member_actions.proto:34
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:554
"public" interface to sys_var - server configuration variables.
enum enum_mysql_show_type SHOW_TYPE
Definition: set_var.h:75
@ OPT_GLOBAL
Definition: set_var.h:95
Declarations for the Debug Sync Facility.
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:411
File containing constants that can be used throughout the server.
SHOW_COMP_OPTION
Definition: sql_const.h:230
constexpr const size_t STRING_BUFFER_USUAL_SIZE
Definition: sql_const.h:126
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:690
void plugin_unlock(THD *thd, plugin_ref plugin)
Definition: sql_plugin.cc:1261
#define my_plugin_lock_by_name(A, B, C)
Definition: sql_plugin.h:175
#define my_plugin_lock(A, B)
Definition: sql_plugin.h:177
LEX_CSTRING * plugin_name(st_plugin_int **ref)
Definition: sql_plugin_ref.h:95
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:1131
@ SHOW_DOUBLE
Definition: status_variables_bits.h:42
@ SHOW_CHAR_PTR
Definition: status_variables_bits.h:39
@ SHOW_MY_BOOL
Definition: status_variables_bits.h:52
@ SHOW_CHAR
Definition: status_variables_bits.h:38
@ SHOW_LEX_STRING
Definition: status_variables_bits.h:57
char * set_to_string(THD *thd, LEX_STRING *result, ulonglong set, const char *lib[], bool quoted)
Definition: strfunc.cc:270
char * flagset_to_string(THD *thd, LEX_STRING *result, ulonglong set, const char *lib[])
Definition: strfunc.cc:303
A small wrapper class to pass getopt arguments as a pair to the Sys_var_* constructors.
Definition: sys_vars.h:175
int id
Definition: sys_vars.h:176
CMD_LINE(enum get_opt_arg_type getopt_arg_type, int getopt_id=0)
Definition: sys_vars.h:178
enum get_opt_arg_type arg_type
Definition: sys_vars.h:177
Holds information about a Gtid_set.
Definition: rpl_gtid.h:2540
Gtid_set * get_gtid_set() const
Return NULL if this is NULL, otherwise return the Gtid_set.
Definition: rpl_gtid.h:2546
This struct represents a specification of a GTID for a statement to be executed: either "AUTOMATIC",...
Definition: rpl_gtid.h:3999
static const int MAX_TEXT_LENGTH
Definition: rpl_gtid.h:4126
static const int MAX_TEXT_LENGTH
The maximal length of the textual representation of a TSID, not including the terminating '\0'.
Definition: rpl_gtid.h:1138
rpl_sidno sidno
SIDNO of this Gtid.
Definition: rpl_gtid.h:1105
int to_string(const Tsid &tsid, char *buf) const
Convert a Gtid to a string.
Definition: rpl_gtid_misc.cc:214
Definition: keycache.h:73
bool in_init
Definition: keycache.h:131
Definition: mysql_lex_string.h:40
const char * str
Definition: mysql_lex_string.h:41
size_t length
Definition: mysql_lex_string.h:42
Definition: mysql_lex_string.h:35
char * str
Definition: mysql_lex_string.h:36
size_t length
Definition: mysql_lex_string.h:37
Definition: sys_vars.h:751
uint number
Definition: sys_vars.h:753
const char * alias
Definition: sys_vars.h:752
Definition: system_variables.h:203
const char ** type_names
Definition: typelib.h:38
size_t count
Definition: typelib.h:36
const char * name
Definition: typelib.h:37
unsigned int * type_lengths
Definition: typelib.h:39
Definition: my_getopt.h:83
const char * comment
option comment, for autom.
Definition: my_getopt.h:113
longlong min_value
Min allowed value (for numbers)
Definition: my_getopt.h:123
ulonglong max_value
Max allowed value (for numbers)
Definition: my_getopt.h:124
longlong def_value
Default value.
Definition: my_getopt.h:122
long block_size
Value should be a mult.
Definition: my_getopt.h:127
const char * name
Name of the option.
Definition: my_getopt.h:94
void * u_max_value
The user def.
Definition: my_getopt.h:118
ulong var_type
GET_BOOL, GET_ULL, etc.
Definition: my_getopt.h:120
TYPELIB * typelib
Pointer to possible values.
Definition: my_getopt.h:119
void * value
A pointer to the variable value.
Definition: my_getopt.h:117
Definition: sql_plugin_ref.h:45
Definition: sql_connect.h:70
USER_RESOURCES user_resources
Definition: sql_connect.h:94
uint user_conn
Definition: sql_connect.h:52
#define NO_CMD_LINE
Definition: sys_vars.h:128
Sys_var_integer< ulong, GET_ULONG, SHOW_LONG, false > Sys_var_ulong
Definition: sys_vars.h:338
#define keycache_var_ptr(KC, OFF)
Definition: sys_vars.h:1296
#define keycache_var(KC, OFF)
Definition: sys_vars.h:1297
charset_enum
Definition: sys_vars.h:164
@ IN_SYSTEM_CHARSET
Definition: sys_vars.h:164
@ IN_FS_CHARSET
Definition: sys_vars.h:164
#define NON_PERSIST
Definition: sys_vars.h:146
#define MAX_SET(X)
Definition: sys_vars.h:1507
Sys_var_integer< uint, GET_UINT, SHOW_INT, false > Sys_var_uint
Definition: sys_vars.h:337
sys_var_chain all_sys_vars
Definition: set_var.cc:142
Sys_var_integer< int32, GET_UINT, SHOW_INT, false > Sys_var_int32
Definition: sys_vars.h:336
constexpr const unsigned long MAX_CONNECTIONS_DEFAULT
Maximum number of connections default value.
Definition: sys_vars.h:110
void update_parser_max_mem_size()
Definition: sys_vars.cc:3224
const char * fixup_enforce_gtid_consistency_command_line(char *value_arg)
Definition: sys_vars.cc:6357
#define session_var(THD, TYPE)
Definition: sys_vars.h:157
Sys_var_integer< long, GET_LONG, SHOW_SIGNED_LONG, true > Sys_var_long
Definition: sys_vars.h:343
constexpr const unsigned long TABLE_DEF_CACHE_DEFAULT
Definition: sys_vars.h:104
#define GLOBAL_VAR(X)
Definition: sys_vars.h:119
bool(* keycache_update_function)(THD *, KEY_CACHE *, ptrdiff_t, ulonglong)
Definition: sys_vars.h:1298
void update_optimizer_switch()
Definition: sys_vars.cc:3234
static const char * bool_values[3]
Definition: sys_vars.h:166
constexpr const unsigned long TABLE_OPEN_CACHE_DEFAULT
Definition: sys_vars.h:103
#define global_var(TYPE)
Definition: sys_vars.h:158
Sys_var_integer< ha_rows, GET_HA_ROWS, SHOW_HA_ROWS, false > Sys_var_harows
Definition: sys_vars.h:340
Sys_var_integer< ulonglong, GET_ULL, SHOW_LONGLONG, false > Sys_var_ulonglong
Definition: sys_vars.h:342
"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:33
int find_type(const char *x, const TYPELIB *typelib, unsigned int flags)
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)
Time_zone * my_tz_find(const int64 displacement)
Item_result
Type of the user defined function return slot and arguments.
Definition: udf_registration_types.h:39
@ STRING_RESULT
not valid for UDFs
Definition: udf_registration_types.h:41
@ DECIMAL_RESULT
not valid for UDFs
Definition: udf_registration_types.h:45
@ REAL_RESULT
char *
Definition: udf_registration_types.h:42
@ INT_RESULT
double
Definition: udf_registration_types.h:43
unsigned long id[MAX_DEAD]
Definition: xcom_base.cc:510