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),
424 char *def_val)
override {
480 THD *running_thd,
THD *target_thd,
481 std::string_view keycache_name)
override {
485 THD *thd, std::string_view keycache_name)
override {
575 m_comment = std::string(
"This option is deprecated. Use ") +
598 binlog_status_arg, on_check_func, on_update_func, substitute,
613 if (!(res = var->value->val_str(&
str)))
615 else if (!(var->save_result.ulonglong_value =
619 var->save_result.ulonglong_value--;
621 longlong tmp = var->value->val_int();
625 var->save_result.ulonglong_value = tmp;
652 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
653 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
658 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
660 values, def_val,
lock, binlog_status_arg, on_check_func,
661 on_update_func, substitute, parse_flag) {
665 assert(size ==
sizeof(ulong));
687 std::string_view)
override {
688 return pointer_cast<const uchar *>(
705 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
706 size_t size [[maybe_unused]],
CMD_LINE getopt,
bool def_val,
711 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
714 on_check_func, on_update_func, substitute, parse_flag) {
718 assert(size ==
sizeof(
bool));
818 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
819 size_t size [[maybe_unused]],
CMD_LINE getopt,
const ALIAS aliases_arg[],
820 uint value_count_arg,
uint def_val,
uint command_line_no_value_arg,
825 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
828 on_check_func, on_update_func, substitute, parse_flag),
843 assert(size ==
sizeof(ulong));
877 if (value_str ==
nullptr) {
884 if (value != -1)
goto end;
887 value = strtol(value_str, &
end, 10);
889 if (
end > value_str && *
end ==
'\0')
907 if (!res)
return true;
913 &valid_len, &len_error))
917 if (value == -1)
return true;
1028 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1029 size_t size [[maybe_unused]],
CMD_LINE getopt,
1030 enum charset_enum is_os_charset_arg,
const char *def_val,
1035 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1038 binlog_status_arg, on_check_func, on_update_func, substitute,
1043 assert(size ==
sizeof(
char *));
1048 flags &= ~ALLOCATED;
1105 :
const_cast<char *
>(
"");
1120 ptrdiff_t off,
size_t size,
CMD_LINE getopt,
1121 enum charset_enum is_os_charset_arg,
const char *def_val)
1123 is_os_charset_arg, def_val) {}
1128 std::string_view keycache_name)
override {
1132 static const char *altered_value =
"some-other-version";
1133 const uchar *altered_value_ptr = pointer_cast<uchar *>(&altered_value);
1134 value = altered_value_ptr;
1173 std::string_view)
override {
1175 return proxy_user[0] ? pointer_cast<const uchar *>(proxy_user) :
nullptr;
1187 std::string_view)
override {
1189 return external_user.
length ? pointer_cast<const uchar *>(external_user.
str)
1209 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1210 size_t size [[maybe_unused]],
CMD_LINE getopt,
1211 enum charset_enum is_os_charset_arg,
const char *def_val,
1216 const char *substitute =
nullptr)
1218 getopt, is_os_charset_arg, def_val,
lock,
1219 binlog_status_arg, on_check_func, on_update_func,
1247 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
1252 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1255 binlog_status_arg, on_check_func, on_update_func, substitute,
1293 std::string_view)
override {
1309#define KEYCACHE_VAR(X) \
1310 sys_var::GLOBAL, offsetof(KEY_CACHE, X), sizeof(((KEY_CACHE *)0)->X)
1311#define keycache_var_ptr(KC, OFF) (((uchar *)(KC)) + (OFF))
1312#define keycache_var(KC, OFF) (*(ulonglong *)keycache_var_ptr(KC, OFF))
1332 ptrdiff_t off,
size_t size,
CMD_LINE getopt,
1338 const char *substitute =
nullptr)
1340 name_arg,
comment, flag_args, -1,
1341 size, getopt, min_val, max_val, def_val, block_size,
lock,
1342 binlog_status_arg, on_check_func,
nullptr, substitute),
1361 "is deprecated and will be removed in a "
1379 if (key_cache->
in_init)
return true;
1384 std::string_view keycache_name)
override {
1385 if (!keycache_name.empty())
1387 ER_WARN_DEPRECATED_SYNTAX,
1388 "@@global.%.*s.%s syntax "
1389 "is deprecated and will be removed in a "
1391 static_cast<int>(keycache_name.size()),
1392 keycache_name.data(),
name.
str);
1410 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1411 size_t size [[maybe_unused]],
CMD_LINE getopt,
double min_val,
1412 double max_val,
double def_val,
PolyLock *
lock =
nullptr,
1416 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1420 binlog_status_arg, on_check_func, on_update_func, substitute,
1426 assert(min_val <= max_val);
1427 assert(min_val <= def_val);
1428 assert(max_val >= def_val);
1429 assert(size ==
sizeof(
double));
1502 const char *name_arg,
const char *
comment,
int, ptrdiff_t off,
1508 const char *substitute =
nullptr)
1510 max_val, def_val, block_size,
lock, binlog_status_arg,
1511 on_check_func, on_update_func, substitute) {}
1513 std::string_view keycache_name)
override {
1522#define MAX_SET(X) ((((1ULL << ((X)-1)) - 1) << 1) | 1)
1541 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1542 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
1547 const char *substitute =
nullptr)
1549 values, def_val,
lock, binlog_status_arg, on_check_func,
1550 on_update_func, substitute) {
1556 assert(strcmp(values[
typelib.
count - 1],
"default") == 0);
1589 if ((tmp < 0 && !var->value->unsigned_flag) ||
1618 std::string_view)
override {
1641 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1642 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *values[],
1647 const char *substitute =
nullptr)
1649 values, def_val,
lock, binlog_status_arg, on_check_func,
1650 on_update_func, substitute) {
1672 nullptr, &
error, &error_len, ¬_used);
1686 if ((tmp < 0 && !var->value->unsigned_flag) ||
1715 std::string_view)
override {
1744 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1745 size_t size [[maybe_unused]],
CMD_LINE getopt,
int plugin_type_arg,
1750 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
1753 binlog_status_arg, on_check_func, on_update_func, substitute,
1758 assert(getopt.
id == -1);
1790 if (oldval != newval) {
1810 pname.str = *default_value;
1831 std::string_view)
override {
1845#if defined(ENABLED_DEBUG_SYNC)
1849class Sys_var_debug_sync :
public sys_var {
1852 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
1854 enum binlog_status_enum binlog_status_arg = VARIABLE_NOT_IN_BINLOG,
1855 on_check_function on_check_func =
nullptr,
1856 on_update_function on_update_func =
nullptr,
1857 const char *substitute =
nullptr,
int parse_flag = PARSE_NORMAL)
1860 binlog_status_arg, on_check_func, on_update_func, substitute,
1862 assert(
scope() == ONLY_SESSION);
1892 std::string_view)
override {
1893 return debug_sync_value_ptr(running_thd);
1936 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
1943 const char *substitute =
nullptr)
1946 on_check_func, on_update_func, substitute) {
1952 assert(getopt.
id == -1);
1973 std::string_view)
override {
2016 const char *substitute =
nullptr)
2018 getopt, min_val, max_val, 0, block_size,
lock,
2019 binlog_status_arg, on_check_func,
nullptr,
2024 assert(getopt.
id == -1);
2034 var->
value =
nullptr;
2041 std::string_view)
override {
2063 const char *name_arg,
const char *
comment,
int flag_args,
CMD_LINE getopt,
2069 const char *substitute =
nullptr)
2071 min_val, max_val, 0.0,
lock, binlog_status_arg,
2072 on_check_func,
nullptr, substitute),
2076 assert(getopt.
id == -1);
2086 var->
value =
nullptr;
2093 std::string_view)
override {
2116 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2121 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2124 on_check_func, on_update_func, substitute, parse_flag) {
2126 assert(getopt.
id == -1);
2127 assert(
lock ==
nullptr);
2153 return pointer_cast<const uchar *>(
2178 const char *substitute =
nullptr)
2211template <
typename Struct_type,
typename Name_getter>
2215 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2216 size_t size [[maybe_unused]],
CMD_LINE getopt,
void *def_val,
2221 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2224 binlog_status_arg, on_check_func, on_update_func, substitute,
2235 assert(getopt.
id == -1);
2236 assert(size ==
sizeof(
void *));
2255 const Struct_type *ptr =
2258 strcpy(def_val, pointer_cast<const char *>(Name_getter(ptr).get_name()));
2264 std::string_view)
override {
2265 const Struct_type *ptr =
session_var(target_thd,
const Struct_type *);
2266 return ptr ? Name_getter(ptr).get_name() :
nullptr;
2269 const Struct_type *ptr =
global_var(
const Struct_type *);
2270 return ptr ? Name_getter(ptr).get_name() :
nullptr;
2287 ptrdiff_t off,
size_t size [[maybe_unused]],
CMD_LINE getopt,
2292 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2295 binlog_status_arg, on_check_func, on_update_func, substitute,
2297 assert(getopt.
id == -1);
2306 if (!res)
return true;
2333 std::string_view)
override {
2343 return pointer_cast<const uchar *>(
2347 return pointer_cast<const uchar *>(
2364 int flag_args, ptrdiff_t off,
size_t size,
2365 CMD_LINE getopt,
const char *values[],
2370 def_val,
lock, binlog_status_arg, on_check_func) {}
2386 int flag_args, ptrdiff_t off,
size_t size,
2391 lock, binlog_status_arg, on_check_func) {}
2402 int flag_args, ptrdiff_t off,
size_t size,
2403 CMD_LINE getopt,
const char *values[],
2408 size, getopt, values, def_val,
lock, binlog_status_arg,
2419 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2420 size_t size [[maybe_unused]],
CMD_LINE getopt,
const char *def_val,
2425 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2428 binlog_status_arg, on_check_func, on_update_func, substitute,
2454 std::string_view)
override {
2462 return (
uchar *)ret;
2470#ifdef HAVE_GTID_NEXT_LIST
2478class Sys_var_gtid_set :
public sys_var {
2481 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2483 enum binlog_status_enum binlog_status_arg = VARIABLE_NOT_IN_BINLOG,
2484 on_check_function on_check_func = 0,
2485 on_update_function on_update_func = 0,
const char *substitute = 0,
2486 int parse_flag = PARSE_NORMAL)
2489 binlog_status_arg, on_check_func, on_update_func, substitute,
2502 char *ptr = (
char *)(
intptr)option.def_value;
2530 const std::string &)
override {
2637 time_t current_time = time(
nullptr);
2640 current_time = 1616893190;
2644 current_time = 1616893200;
2648 localtime_r(¤t_time, &tm_tmp);
2660 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2665 const char *substitute =
nullptr,
int parse_flag =
PARSE_NORMAL)
2668 binlog_status_arg, on_check_func, on_update_func, substitute,
2693 if (!res)
return true;
2747 std::string_view)
override {
2749 char *
buf =
nullptr;
2750 bool remote = (target_thd != running_thd);
2758#ifdef HAVE_GTID_NEXT_LIST
2760 target_thd->owned_gtid_set.get_string_length() + 1);
2763 target_thd->owned_gtid_set.to_string(
buf);
2800 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2801 size_t size,
CMD_LINE getopt,
const char *values[],
uint def_val,
2806 def_val,
lock, binlog_status_arg, on_check_func) {}
2814 const char *name_arg,
const char *
comment,
int flag_args, ptrdiff_t off,
2822 lock, binlog_status_arg, on_check_func) {}
2830 int flag_args, ptrdiff_t off,
size_t size,
2835 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:3426
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
virtual 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:479
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
virtual ulong get_var_type() override
Returns variable type.
Definition: sys_vars.h:413
virtual void cleanup() override
All the cleanup procedures should be performed here.
Definition: sys_vars.h:399
sys_var & m_base_var
Definition: sys_vars.h:353
virtual void set_source(enum_variable_source src) override
Definition: sys_vars.h:436
virtual bool set_host(const char *hst) override
Definition: sys_vars.h:447
virtual longlong get_min_value() override
Definition: sys_vars.h:407
virtual bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:474
virtual bool set_user(const char *usr) override
Definition: sys_vars.h:442
virtual void set_timestamp() override
Definition: sys_vars.h:456
virtual ulonglong get_max_value() override
Definition: sys_vars.h:410
virtual enum_variable_source get_source() override
Definition: sys_vars.h:430
Sys_var_alias(const char *name_arg, sys_var &base_var)
Definition: sys_vars.h:393
virtual bool set_source_name(const char *path) override
Definition: sys_vars.h:439
virtual longlong get_default() override
Definition: sys_vars.h:406
virtual const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:484
virtual const char * get_user() override
Definition: sys_vars.h:445
virtual ulonglong get_timestamp() const override
Definition: sys_vars.h:450
virtual 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:423
virtual bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:471
virtual const char * get_source_name() override
Definition: sys_vars.h:433
virtual bool check_update_type(Item_result type) override
Definition: sys_vars.h:427
virtual bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:462
virtual sys_var_pluginvar * cast_pluginvar() override
downcast for sys_var_pluginvar.
Definition: sys_vars.h:400
sys_var & get_base_var()
Definition: sys_vars.h:397
virtual const char * get_host() override
Definition: sys_vars.h:446
virtual void update_default(longlong new_def_value) override
Definition: sys_vars.h:403
virtual void set_user_host(THD *thd) override
Definition: sys_vars.h:453
virtual bool is_non_persistent() override
Definition: sys_vars.h:420
virtual void set_arg_source(get_opt_arg_source *arg_source) override
Definition: sys_vars.h:414
virtual void global_save_default(THD *thd, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:468
virtual void set_timestamp(ulonglong ts) override
Definition: sys_vars.h:457
virtual void set_is_plugin(bool is_plugin) override
Definition: sys_vars.h:417
virtual void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:465
Definition: sys_vars.h:2827
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:2829
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:7331
The class for bit variables - a variant of boolean that stores the value in a bit.
Definition: sys_vars.h:1924
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:1935
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1966
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:1969
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:1972
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1963
void set(uchar *ptr, ulonglong value)
Definition: sys_vars.h:1927
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1955
ulonglong bitmask
Definition: sys_vars.h:1925
bool reverse_semantics
Definition: sys_vars.h:1926
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1979
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1959
The class for boolean variables - a variant of ENUM variables with the fixed list of values of { OFF ...
Definition: sys_vars.h:702
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:725
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:704
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:729
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:736
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:733
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:720
Abstract base class for read-only variables (global or session) of string type where the value is gen...
Definition: sys_vars.h:2559
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2572
Sys_var_charptr_func(const char *name_arg, const char *comment, flag_enum flag_arg)
Definition: sys_vars.h:2561
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:2593
bool check_update_type(Item_result) override
Definition: sys_vars.h:2589
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2585
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2582
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2576
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2597
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2581
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2580
The class for string variables.
Definition: sys_vars.h:1025
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1051
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1112
void cleanup() override
All the cleanup procedures should be performed here.
Definition: sys_vars.h:1046
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:1108
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1092
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1086
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1075
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:1027
@session.dbug and @global.dbug variables.
Definition: sys_vars.h:1244
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1259
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:1283
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:1292
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1303
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1298
bool session_update(THD *, set_var *var) override
Definition: sys_vars.h:1270
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1278
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:1246
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:1288
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1284
A deprecated alias for a variable.
Definition: sys_vars.h:568
std::string m_comment
Definition: sys_vars.h:570
Sys_var_deprecated_alias(const char *name_arg, sys_var &base_var)
Definition: sys_vars.h:573
The class for floating point variables.
Definition: sys_vars.h:1407
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1443
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:1456
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1439
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:1409
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1453
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1447
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1431
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1450
Definition: sys_vars.h:2811
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:2813
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:2399
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:2401
The class for ENUM variables - variables that take one value from a fixed list of values.
Definition: sys_vars.h:649
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:676
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:672
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:682
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:651
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:686
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:679
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:691
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:667
Definition: sys_vars.h:1179
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:1186
Sys_var_external_user(const char *name_arg, const char *comment_arg, enum charset_enum is_os_charset_arg)
Definition: sys_vars.h:1181
The class for flagset variables - a variant of SET that allows in-place editing (turning on/off indiv...
Definition: sys_vars.h:1538
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1602
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:1617
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1598
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1623
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1609
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1559
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1606
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:1540
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:1612
Class for @global.gtid_executed.
Definition: sys_vars.h:2606
Sys_var_gtid_executed(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2608
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2611
Definition: sys_vars.h:2797
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:2799
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:2416
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2445
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:2453
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:2464
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2446
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2434
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2438
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2449
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2450
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:2418
Definition: sys_vars.h:2740
Sys_var_gtid_owned(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2742
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2783
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:2746
Class for @session.gtid_purged.
Definition: sys_vars.h:2657
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.cc:6672
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:2734
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2680
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:2688
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2706
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2671
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2710
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:2659
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2676
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2684
A subclass of Sys_var_have to return dynamic values.
Definition: sys_vars.h:2166
static enum SHOW_COMP_OPTION dummy_
Definition: sys_vars.h:2195
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:2189
enum SHOW_COMP_OPTION(* func_)(THD *)
Definition: sys_vars.h:2194
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:2176
The class for read-only variables that show whether a particular feature is supported by the server.
Definition: sys_vars.h:2113
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2141
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:2115
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:2145
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2152
bool check_update_type(Item_result) override
Definition: sys_vars.h:2156
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2133
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2146
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:2148
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:2137
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2147
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:1327
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:1383
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:1331
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1350
keycache_update_function keycache_update
Definition: sys_vars.h:1328
The class for string variables.
Definition: sys_vars.h:1206
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:1208
bool global_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1225
The class for the max_user_connections.
Definition: sys_vars.h:1499
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:1501
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:1512
A variant of enum where:
Definition: sys_vars.h:765
uint command_line_no_value
Definition: sys_vars.h:1010
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:1009
const uint value_count
The number of allowed numeric values.
Definition: sys_vars.h:999
uint alias_count
The number of elements of aliases (computed in the constructor).
Definition: sys_vars.h:1003
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:970
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:944
const ALIAS * aliases
Array of all textual aliases.
Definition: sys_vars.h:1001
bool check_update_type(Item_result type) override
Definition: sys_vars.h:929
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:981
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:932
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:957
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:850
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:901
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:817
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:977
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:871
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:992
The class for variables which value is a plugin.
Definition: sys_vars.h:1739
bool check_update_type(Item_result type) override
Definition: sys_vars.h:1827
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:1760
void session_save_default(THD *thd, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1803
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:1823
void global_save_default(THD *thd, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1807
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:1830
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1795
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:1743
void do_update(plugin_ref *valptr, plugin_ref newval)
Definition: sys_vars.h:1788
int plugin_type
Definition: sys_vars.h:1740
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1799
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1837
Definition: sys_vars.h:1141
void session_save_default(THD *, set_var *) override
save the session default value of the variable in var
Definition: sys_vars.h:1164
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:1172
bool check_update_type(Item_result) override
Definition: sys_vars.h:1169
bool session_update(THD *, set_var *) override
Definition: sys_vars.h:1156
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:1152
Sys_var_proxy_user(const char *name_arg, const char *comment, enum charset_enum is_os_charset_arg)
Definition: sys_vars.h:1143
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:1160
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:1165
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:1166
Similar to Sys_var_session_special, but with double storage.
Definition: sys_vars.h:2054
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2088
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2085
session_special_read_double_function read_func
Definition: sys_vars.h:2058
double(* session_special_read_double_function)(THD *thd)
Definition: sys_vars.h:2056
session_special_update_function update_func
Definition: sys_vars.h:2059
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2089
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:2062
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2081
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2078
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:2092
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2097
bool(* session_special_update_function)(THD *thd, set_var *var)
Definition: sys_vars.h:2055
The class for variables that have a special meaning for a session, such as @timestamp or @rnd_seed1,...
Definition: sys_vars.h:2001
bool global_update(THD *, set_var *) override
Definition: sys_vars.h:2029
bool(* session_special_update_function)(THD *thd, set_var *var)
Definition: sys_vars.h:2002
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2026
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2033
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2045
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:2009
void global_save_default(THD *, set_var *) override
save the global default value of the variable in var
Definition: sys_vars.h:2036
ulonglong(* session_special_read_function)(THD *thd)
Definition: sys_vars.h:2003
session_special_read_function read_func
Definition: sys_vars.h:2005
session_special_update_function update_func
Definition: sys_vars.h:2006
void saved_value_to_string(THD *, set_var *, char *) override
This function converts value stored in save_result to string.
Definition: sys_vars.h:2037
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:2040
The class for SET variables - variables taking zero or more values from the given list.
Definition: sys_vars.h:1638
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:1695
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:1658
const uchar * global_value_ptr(THD *thd, std::string_view) override
Definition: sys_vars.h:1720
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:1640
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:1703
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:1706
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:1709
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:1699
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:1714
Generic class for variables for storing entities that are internally represented as structures,...
Definition: sys_vars.h:2212
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2260
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:2254
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:2263
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2239
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:2250
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:2214
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:2243
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2268
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2247
bool do_check(THD *, set_var *) override
Definition: sys_vars.h:2238
Class for @global.system_time_zone.
Definition: sys_vars.h:2628
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2635
Sys_var_system_time_zone(const char *name_arg, const char *comment_arg)
Definition: sys_vars.h:2630
The class for test_flags (core_file for now).
Definition: sys_vars.h:1471
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:1483
bool test_flag_value
Definition: sys_vars.h:1473
uint test_flag_mask
Definition: sys_vars.h:1474
Sys_var_test_flag(const char *name_arg, const char *comment, uint mask)
Definition: sys_vars.h:1477
Class representing the 'transaction_isolation' system variable.
Definition: sys_vars.h:2361
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:2363
Class representing the tx_read_only system variable for setting default transaction access mode.
Definition: sys_vars.h:2383
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:2385
Helper class for variables that take values from a TYPELIB.
Definition: sys_vars.h:584
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:589
bool do_check(THD *, set_var *var) override
Definition: sys_vars.h:607
TYPELIB typelib
Definition: sys_vars.h:586
bool check_update_type(Item_result type) override
Definition: sys_vars.h:630
The class for variables that store time zones.
Definition: sys_vars.h:2284
bool do_check(THD *thd, set_var *var) override
Definition: sys_vars.h:2301
bool session_update(THD *thd, set_var *var) override
Definition: sys_vars.h:2315
void global_save_default(THD *, set_var *var) override
save the global default value of the variable in var
Definition: sys_vars.h:2326
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:2286
bool check_update_type(Item_result type) override
Definition: sys_vars.h:2350
bool global_update(THD *, set_var *var) override
Definition: sys_vars.h:2319
void session_save_default(THD *, set_var *var) override
save the session default value of the variable in var
Definition: sys_vars.h:2323
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:2332
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:2329
const uchar * global_value_ptr(THD *, std::string_view) override
Definition: sys_vars.h:2346
Definition: sys_vars.h:1117
~Sys_var_version() override=default
const uchar * global_value_ptr(THD *thd, std::string_view keycache_name) override
Definition: sys_vars.h:1127
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:1119
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:3708
static const int OWNED_SIDNO_GTID_SET
Definition: sql_class.h:3709
rpl_sid owned_sid
For convenience, this contains the SID component of the GTID stored in owned_gtid.
Definition: sql_class.h:3716
double double_value
Definition: sql_class.h:2754
static const int OWNED_SIDNO_ANONYMOUS
Definition: sql_class.h:3710
Session_sysvar_resource_manager session_sysvar_res_mgr
Definition: sql_class.h:4388
void * alloc(size_t size)
Definition: sql_lexer_thd.h:47
bool bool_value
Definition: sql_class.h:2750
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:1291
bool time_zone_used
Definition: sql_class.h:2710
ulonglong ulonglong_value
Definition: sql_class.h:2753
const USER_CONN * get_user_connect() const
Definition: sql_class.h:2359
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:1536
#define my_strcasecmp(s, a, b)
Definition: m_ctype.h:711
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:1193
#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:1233
double getopt_ulonglong2double(ulonglong)
Returns the double value which corresponds to the given raw representation.
Definition: my_getopt.cc:166
ulonglong max_of_int_range(int var_type)
Maximum possible value for an integer GET_* variable type.
Definition: my_getopt.cc:1095
#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:1122
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:1817
uint test_flags
Definition: mysqld.cc:1314
const char * show_comp_option_name[]
Definition: mysqld.cc:1026
char system_time_zone_dst_off[30]
Definition: mysqld.cc:1466
bool opt_bin_log
Definition: mysqld.cc:1172
Gtid_state * gtid_state
Global state of GTIDs.
Definition: mysqld.cc:1818
Checkable_rwlock * global_sid_lock
Protects Gtid_state. See comment above gtid_state for details.
Definition: mysqld.cc:1816
struct System_variables max_system_variables
Definition: mysqld.cc:1531
char system_time_zone_dst_on[30]
Definition: mysqld.cc:1466
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:11191
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1063
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:155
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:767
uint number
Definition: sys_vars.h:769
const char * alias
Definition: sys_vars.h:768
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:1311
#define keycache_var(KC, OFF)
Definition: sys_vars.h:1312
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:1522
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:6520
#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:1313
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)
static const char * pname[]
Definition: uca-dump.cc:275
unsigned int uint
Definition: uca-dump.cc:29
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