mirror of
https://github.com/MariaDB/server.git
synced 2025-01-20 14:02:32 +01:00
d8d6db6f78
without PK Bug#31609 Not all RBR slave errors reported as errors bug#32468 delete rows event on a table with foreign key constraint fails The first two bugs comprise idempotency issues. First, there was no error code reported under conditions of the bug description although the slave sql thread halted. Second, executions were different with and without presence of prim key in the table. Third, there was no way to instruct the slave whether to ignore an error and skip to the following event or to halt. Fourth, there are handler errors which might happen due to idempotent applying of binlog but those were not listed among the "idempotent" error list. All the named issues are addressed. Wrt to the 3rd, there is the new global system variable, changeble at run time, which controls the slave sql thread behaviour. The new variable allows further extensions to mimic the sql_mode session/global variable. To address the 4th, the new bug#32468 had to be fixed as it was staying in the way.
1248 lines
38 KiB
C++
1248 lines
38 KiB
C++
/* Copyright (C) 2002-2006 MySQL AB
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; version 2 of the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
|
|
|
/* Classes to support the SET command */
|
|
|
|
#ifdef USE_PRAGMA_INTERFACE
|
|
#pragma interface /* gcc class implementation */
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
Variables that are changable runtime are declared using the
|
|
following classes
|
|
****************************************************************************/
|
|
|
|
class sys_var;
|
|
class set_var;
|
|
class sys_var_pluginvar; /* opaque */
|
|
typedef struct system_variables SV;
|
|
typedef struct my_locale_st MY_LOCALE;
|
|
|
|
extern TYPELIB bool_typelib, delay_key_write_typelib, sql_mode_typelib,
|
|
slave_exec_mode_typelib;
|
|
|
|
typedef int (*sys_check_func)(THD *, set_var *);
|
|
typedef bool (*sys_update_func)(THD *, set_var *);
|
|
typedef void (*sys_after_update_func)(THD *,enum_var_type);
|
|
typedef void (*sys_set_default_func)(THD *, enum_var_type);
|
|
typedef uchar *(*sys_value_ptr_func)(THD *thd);
|
|
|
|
struct sys_var_chain
|
|
{
|
|
sys_var *first;
|
|
sys_var *last;
|
|
};
|
|
|
|
class sys_var
|
|
{
|
|
public:
|
|
sys_var *next;
|
|
struct my_option *option_limits; /* Updated by by set_var_init() */
|
|
uint name_length; /* Updated by by set_var_init() */
|
|
const char *name;
|
|
|
|
sys_after_update_func after_update;
|
|
bool no_support_one_shot;
|
|
sys_var(const char *name_arg,sys_after_update_func func= NULL)
|
|
:name(name_arg), after_update(func)
|
|
, no_support_one_shot(1)
|
|
{}
|
|
virtual ~sys_var() {}
|
|
void chain_sys_var(sys_var_chain *chain_arg)
|
|
{
|
|
if (chain_arg->last)
|
|
chain_arg->last->next= this;
|
|
else
|
|
chain_arg->first= this;
|
|
chain_arg->last= this;
|
|
}
|
|
virtual bool check(THD *thd, set_var *var);
|
|
bool check_enum(THD *thd, set_var *var, const TYPELIB *enum_names);
|
|
bool check_set(THD *thd, set_var *var, TYPELIB *enum_names);
|
|
virtual bool update(THD *thd, set_var *var)=0;
|
|
virtual void set_default(THD *thd_arg, enum_var_type type) {}
|
|
virtual SHOW_TYPE show_type() { return SHOW_UNDEF; }
|
|
virtual uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{ return 0; }
|
|
virtual bool check_type(enum_var_type type)
|
|
{ return type != OPT_GLOBAL; } /* Error if not GLOBAL */
|
|
virtual bool check_update_type(Item_result type)
|
|
{ return type != INT_RESULT; } /* Assume INT */
|
|
virtual bool check_default(enum_var_type type)
|
|
{ return option_limits == 0; }
|
|
Item *item(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
virtual bool is_struct() { return 0; }
|
|
virtual bool is_readonly() const { return 0; }
|
|
virtual sys_var_pluginvar *cast_pluginvar() { return 0; }
|
|
};
|
|
|
|
|
|
/*
|
|
A base class for all variables that require its access to
|
|
be guarded with a mutex.
|
|
*/
|
|
|
|
class sys_var_global: public sys_var
|
|
{
|
|
protected:
|
|
pthread_mutex_t *guard;
|
|
public:
|
|
sys_var_global(const char *name_arg, sys_after_update_func after_update_arg,
|
|
pthread_mutex_t *guard_arg)
|
|
:sys_var(name_arg, after_update_arg), guard(guard_arg) {}
|
|
};
|
|
|
|
|
|
/*
|
|
A global-only ulong variable that requires its access to be
|
|
protected with a mutex.
|
|
*/
|
|
|
|
class sys_var_long_ptr_global: public sys_var_global
|
|
{
|
|
public:
|
|
ulong *value;
|
|
sys_var_long_ptr_global(sys_var_chain *chain, const char *name_arg,
|
|
ulong *value_ptr_arg,
|
|
pthread_mutex_t *guard_arg,
|
|
sys_after_update_func after_update_arg= NULL)
|
|
:sys_var_global(name_arg, after_update_arg, guard_arg),
|
|
value(value_ptr_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var);
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_LONG; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{ return (uchar*) value; }
|
|
};
|
|
|
|
|
|
/*
|
|
A global ulong variable that is protected by LOCK_global_system_variables
|
|
*/
|
|
|
|
class sys_var_long_ptr :public sys_var_long_ptr_global
|
|
{
|
|
public:
|
|
sys_var_long_ptr(sys_var_chain *chain, const char *name_arg, ulong *value_ptr,
|
|
sys_after_update_func after_update_arg= NULL);
|
|
};
|
|
|
|
|
|
class sys_var_ulonglong_ptr :public sys_var
|
|
{
|
|
public:
|
|
ulonglong *value;
|
|
sys_var_ulonglong_ptr(sys_var_chain *chain, const char *name_arg, ulonglong *value_ptr_arg)
|
|
:sys_var(name_arg),value(value_ptr_arg)
|
|
{ chain_sys_var(chain); }
|
|
sys_var_ulonglong_ptr(sys_var_chain *chain, const char *name_arg, ulonglong *value_ptr_arg,
|
|
sys_after_update_func func)
|
|
:sys_var(name_arg,func), value(value_ptr_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_LONGLONG; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{ return (uchar*) value; }
|
|
};
|
|
|
|
|
|
class sys_var_bool_ptr :public sys_var
|
|
{
|
|
public:
|
|
my_bool *value;
|
|
sys_var_bool_ptr(sys_var_chain *chain, const char *name_arg, my_bool *value_arg)
|
|
:sys_var(name_arg),value(value_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
return check_enum(thd, var, &bool_typelib);
|
|
}
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_MY_BOOL; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{ return (uchar*) value; }
|
|
bool check_update_type(Item_result type) { return 0; }
|
|
};
|
|
|
|
|
|
class sys_var_bool_ptr_readonly :public sys_var_bool_ptr
|
|
{
|
|
public:
|
|
sys_var_bool_ptr_readonly(sys_var_chain *chain, const char *name_arg,
|
|
my_bool *value_arg)
|
|
:sys_var_bool_ptr(chain, name_arg, value_arg)
|
|
{}
|
|
bool is_readonly() const { return 1; }
|
|
};
|
|
|
|
|
|
class sys_var_str :public sys_var
|
|
{
|
|
public:
|
|
char *value; // Pointer to allocated string
|
|
uint value_length;
|
|
sys_check_func check_func;
|
|
sys_update_func update_func;
|
|
sys_set_default_func set_default_func;
|
|
sys_var_str(sys_var_chain *chain, const char *name_arg,
|
|
sys_check_func check_func_arg,
|
|
sys_update_func update_func_arg,
|
|
sys_set_default_func set_default_func_arg,
|
|
char *value_arg)
|
|
:sys_var(name_arg), value(value_arg), check_func(check_func_arg),
|
|
update_func(update_func_arg),set_default_func(set_default_func_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var);
|
|
bool update(THD *thd, set_var *var)
|
|
{
|
|
return (*update_func)(thd, var);
|
|
}
|
|
void set_default(THD *thd, enum_var_type type)
|
|
{
|
|
(*set_default_func)(thd, type);
|
|
}
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{ return (uchar*) value; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return type != STRING_RESULT; /* Only accept strings */
|
|
}
|
|
bool check_default(enum_var_type type) { return 0; }
|
|
};
|
|
|
|
|
|
class sys_var_const_str :public sys_var
|
|
{
|
|
public:
|
|
char *value; // Pointer to const value
|
|
sys_var_const_str(sys_var_chain *chain, const char *name_arg, const char *value_arg)
|
|
:sys_var(name_arg),value((char*) value_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
return 1;
|
|
}
|
|
bool update(THD *thd, set_var *var)
|
|
{
|
|
return 1;
|
|
}
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{
|
|
return (uchar*) value;
|
|
}
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return 1;
|
|
}
|
|
bool check_default(enum_var_type type) { return 1; }
|
|
bool is_readonly() const { return 1; }
|
|
};
|
|
|
|
|
|
class sys_var_const_str_ptr :public sys_var
|
|
{
|
|
public:
|
|
char **value; // Pointer to const value
|
|
sys_var_const_str_ptr(sys_var_chain *chain, const char *name_arg, char **value_arg)
|
|
:sys_var(name_arg),value(value_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
return 1;
|
|
}
|
|
bool update(THD *thd, set_var *var)
|
|
{
|
|
return 1;
|
|
}
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{
|
|
return (uchar*) *value;
|
|
}
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return 1;
|
|
}
|
|
bool check_default(enum_var_type type) { return 1; }
|
|
bool is_readonly() const { return 1; }
|
|
};
|
|
|
|
|
|
class sys_var_enum :public sys_var
|
|
{
|
|
uint *value;
|
|
TYPELIB *enum_names;
|
|
public:
|
|
sys_var_enum(sys_var_chain *chain, const char *name_arg, uint *value_arg,
|
|
TYPELIB *typelib, sys_after_update_func func)
|
|
:sys_var(name_arg,func), value(value_arg), enum_names(typelib)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
return check_enum(thd, var, enum_names);
|
|
}
|
|
bool update(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
bool check_update_type(Item_result type) { return 0; }
|
|
};
|
|
|
|
|
|
class sys_var_thd :public sys_var
|
|
{
|
|
public:
|
|
sys_var_thd(const char *name_arg,
|
|
sys_after_update_func func= NULL)
|
|
:sys_var(name_arg,func)
|
|
{}
|
|
bool check_type(enum_var_type type) { return 0; }
|
|
bool check_default(enum_var_type type)
|
|
{
|
|
return type == OPT_GLOBAL && !option_limits;
|
|
}
|
|
};
|
|
|
|
|
|
class sys_var_thd_ulong :public sys_var_thd
|
|
{
|
|
sys_check_func check_func;
|
|
public:
|
|
ulong SV::*offset;
|
|
sys_var_thd_ulong(sys_var_chain *chain, const char *name_arg, ulong SV::*offset_arg)
|
|
:sys_var_thd(name_arg), check_func(0), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
sys_var_thd_ulong(sys_var_chain *chain, const char *name_arg, ulong SV::*offset_arg,
|
|
sys_check_func c_func, sys_after_update_func au_func)
|
|
:sys_var_thd(name_arg,au_func), check_func(c_func), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var);
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_LONG; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_thd_ha_rows :public sys_var_thd
|
|
{
|
|
public:
|
|
ha_rows SV::*offset;
|
|
sys_var_thd_ha_rows(sys_var_chain *chain, const char *name_arg,
|
|
ha_rows SV::*offset_arg)
|
|
:sys_var_thd(name_arg), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
sys_var_thd_ha_rows(sys_var_chain *chain, const char *name_arg,
|
|
ha_rows SV::*offset_arg,
|
|
sys_after_update_func func)
|
|
:sys_var_thd(name_arg,func), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_HA_ROWS; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_thd_ulonglong :public sys_var_thd
|
|
{
|
|
public:
|
|
ulonglong SV::*offset;
|
|
bool only_global;
|
|
sys_var_thd_ulonglong(sys_var_chain *chain, const char *name_arg,
|
|
ulonglong SV::*offset_arg)
|
|
:sys_var_thd(name_arg), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
sys_var_thd_ulonglong(sys_var_chain *chain, const char *name_arg,
|
|
ulonglong SV::*offset_arg,
|
|
sys_after_update_func func, bool only_global_arg)
|
|
:sys_var_thd(name_arg, func), offset(offset_arg),
|
|
only_global(only_global_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_LONGLONG; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
bool check_default(enum_var_type type)
|
|
{
|
|
return type == OPT_GLOBAL && !option_limits;
|
|
}
|
|
bool check_type(enum_var_type type)
|
|
{
|
|
return (only_global && type != OPT_GLOBAL);
|
|
}
|
|
};
|
|
|
|
|
|
class sys_var_thd_bool :public sys_var_thd
|
|
{
|
|
public:
|
|
my_bool SV::*offset;
|
|
sys_var_thd_bool(sys_var_chain *chain, const char *name_arg, my_bool SV::*offset_arg)
|
|
:sys_var_thd(name_arg), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
sys_var_thd_bool(sys_var_chain *chain, const char *name_arg, my_bool SV::*offset_arg,
|
|
sys_after_update_func func)
|
|
:sys_var_thd(name_arg,func), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_MY_BOOL; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
return check_enum(thd, var, &bool_typelib);
|
|
}
|
|
bool check_update_type(Item_result type) { return 0; }
|
|
};
|
|
|
|
|
|
class sys_var_thd_enum :public sys_var_thd
|
|
{
|
|
protected:
|
|
ulong SV::*offset;
|
|
TYPELIB *enum_names;
|
|
sys_check_func check_func;
|
|
public:
|
|
sys_var_thd_enum(sys_var_chain *chain, const char *name_arg, ulong SV::*offset_arg,
|
|
TYPELIB *typelib)
|
|
:sys_var_thd(name_arg), offset(offset_arg), enum_names(typelib),
|
|
check_func(0)
|
|
{ chain_sys_var(chain); }
|
|
sys_var_thd_enum(sys_var_chain *chain, const char *name_arg, ulong SV::*offset_arg,
|
|
TYPELIB *typelib,
|
|
sys_after_update_func func)
|
|
:sys_var_thd(name_arg,func), offset(offset_arg), enum_names(typelib),
|
|
check_func(0)
|
|
{ chain_sys_var(chain); }
|
|
sys_var_thd_enum(sys_var_chain *chain, const char *name_arg, ulong SV::*offset_arg,
|
|
TYPELIB *typelib, sys_after_update_func func,
|
|
sys_check_func check)
|
|
:sys_var_thd(name_arg,func), offset(offset_arg), enum_names(typelib),
|
|
check_func(check)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
int ret= 0;
|
|
if (check_func)
|
|
ret= (*check_func)(thd, var);
|
|
return ret ? ret : check_enum(thd, var, enum_names);
|
|
}
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
bool check_update_type(Item_result type) { return 0; }
|
|
};
|
|
|
|
|
|
extern void fix_sql_mode_var(THD *thd, enum_var_type type);
|
|
|
|
class sys_var_thd_sql_mode :public sys_var_thd_enum
|
|
{
|
|
public:
|
|
sys_var_thd_sql_mode(sys_var_chain *chain, const char *name_arg,
|
|
ulong SV::*offset_arg)
|
|
:sys_var_thd_enum(chain, name_arg, offset_arg, &sql_mode_typelib,
|
|
fix_sql_mode_var)
|
|
{}
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
return check_set(thd, var, enum_names);
|
|
}
|
|
void set_default(THD *thd, enum_var_type type);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
static bool symbolic_mode_representation(THD *thd, ulonglong sql_mode,
|
|
LEX_STRING *rep);
|
|
};
|
|
|
|
|
|
class sys_var_thd_storage_engine :public sys_var_thd
|
|
{
|
|
protected:
|
|
plugin_ref SV::*offset;
|
|
public:
|
|
sys_var_thd_storage_engine(sys_var_chain *chain, const char *name_arg,
|
|
plugin_ref SV::*offset_arg)
|
|
:sys_var_thd(name_arg), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return type != STRING_RESULT; /* Only accept strings */
|
|
}
|
|
void set_default(THD *thd, enum_var_type type);
|
|
bool update(THD *thd, set_var *var);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
class sys_var_thd_table_type :public sys_var_thd_storage_engine
|
|
{
|
|
public:
|
|
sys_var_thd_table_type(sys_var_chain *chain, const char *name_arg,
|
|
plugin_ref SV::*offset_arg)
|
|
:sys_var_thd_storage_engine(chain, name_arg, offset_arg)
|
|
{}
|
|
void warn_deprecated(THD *thd);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
bool update(THD *thd, set_var *var);
|
|
};
|
|
|
|
class sys_var_thd_bit :public sys_var_thd
|
|
{
|
|
sys_check_func check_func;
|
|
sys_update_func update_func;
|
|
public:
|
|
ulonglong bit_flag;
|
|
bool reverse;
|
|
sys_var_thd_bit(sys_var_chain *chain, const char *name_arg,
|
|
sys_check_func c_func, sys_update_func u_func,
|
|
ulonglong bit, bool reverse_arg=0)
|
|
:sys_var_thd(name_arg), check_func(c_func), update_func(u_func),
|
|
bit_flag(bit), reverse(reverse_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var);
|
|
bool update(THD *thd, set_var *var);
|
|
bool check_update_type(Item_result type) { return 0; }
|
|
bool check_type(enum_var_type type) { return type == OPT_GLOBAL; }
|
|
SHOW_TYPE show_type() { return SHOW_MY_BOOL; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
class sys_var_thd_dbug :public sys_var_thd
|
|
{
|
|
public:
|
|
sys_var_thd_dbug(sys_var_chain *chain, const char *name_arg)
|
|
:sys_var_thd(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check_update_type(Item_result type) { return type != STRING_RESULT; }
|
|
bool check(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type) { DBUG_POP(); }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *b);
|
|
};
|
|
|
|
|
|
|
|
/* some variables that require special handling */
|
|
|
|
class sys_var_timestamp :public sys_var
|
|
{
|
|
public:
|
|
sys_var_timestamp(sys_var_chain *chain, const char *name_arg)
|
|
:sys_var(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
bool check_type(enum_var_type type) { return type == OPT_GLOBAL; }
|
|
bool check_default(enum_var_type type) { return 0; }
|
|
SHOW_TYPE show_type() { return SHOW_LONG; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_last_insert_id :public sys_var
|
|
{
|
|
public:
|
|
sys_var_last_insert_id(sys_var_chain *chain, const char *name_arg)
|
|
:sys_var(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
bool check_type(enum_var_type type) { return type == OPT_GLOBAL; }
|
|
SHOW_TYPE show_type() { return SHOW_LONGLONG; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_insert_id :public sys_var
|
|
{
|
|
public:
|
|
sys_var_insert_id(sys_var_chain *chain, const char *name_arg)
|
|
:sys_var(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
bool check_type(enum_var_type type) { return type == OPT_GLOBAL; }
|
|
SHOW_TYPE show_type() { return SHOW_LONGLONG; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_rand_seed1 :public sys_var
|
|
{
|
|
public:
|
|
sys_var_rand_seed1(sys_var_chain *chain, const char *name_arg)
|
|
:sys_var(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
bool check_type(enum_var_type type) { return type == OPT_GLOBAL; }
|
|
};
|
|
|
|
class sys_var_rand_seed2 :public sys_var
|
|
{
|
|
public:
|
|
sys_var_rand_seed2(sys_var_chain *chain, const char *name_arg)
|
|
:sys_var(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var);
|
|
bool check_type(enum_var_type type) { return type == OPT_GLOBAL; }
|
|
};
|
|
|
|
|
|
class sys_var_collation :public sys_var_thd
|
|
{
|
|
public:
|
|
sys_var_collation(const char *name_arg)
|
|
:sys_var_thd(name_arg)
|
|
{
|
|
no_support_one_shot= 0;
|
|
}
|
|
bool check(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return ((type != STRING_RESULT) && (type != INT_RESULT));
|
|
}
|
|
bool check_default(enum_var_type type) { return 0; }
|
|
virtual void set_default(THD *thd, enum_var_type type)= 0;
|
|
};
|
|
|
|
class sys_var_character_set :public sys_var_thd
|
|
{
|
|
public:
|
|
bool nullable;
|
|
sys_var_character_set(const char *name_arg, bool is_nullable= 0) :
|
|
sys_var_thd(name_arg), nullable(is_nullable)
|
|
{
|
|
/*
|
|
In fact only almost all variables derived from sys_var_character_set
|
|
support ONE_SHOT; character_set_results doesn't. But that's good enough.
|
|
*/
|
|
no_support_one_shot= 0;
|
|
}
|
|
bool check(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return ((type != STRING_RESULT) && (type != INT_RESULT));
|
|
}
|
|
bool check_default(enum_var_type type) { return 0; }
|
|
bool update(THD *thd, set_var *var);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
virtual void set_default(THD *thd, enum_var_type type)= 0;
|
|
virtual CHARSET_INFO **ci_ptr(THD *thd, enum_var_type type)= 0;
|
|
};
|
|
|
|
class sys_var_character_set_sv :public sys_var_character_set
|
|
{
|
|
CHARSET_INFO *SV::*offset;
|
|
CHARSET_INFO **global_default;
|
|
public:
|
|
sys_var_character_set_sv(sys_var_chain *chain, const char *name_arg,
|
|
CHARSET_INFO *SV::*offset_arg,
|
|
CHARSET_INFO **global_default_arg,
|
|
bool is_nullable= 0)
|
|
: sys_var_character_set(name_arg, is_nullable),
|
|
offset(offset_arg), global_default(global_default_arg)
|
|
{ chain_sys_var(chain); }
|
|
void set_default(THD *thd, enum_var_type type);
|
|
CHARSET_INFO **ci_ptr(THD *thd, enum_var_type type);
|
|
};
|
|
|
|
|
|
class sys_var_character_set_database :public sys_var_character_set
|
|
{
|
|
public:
|
|
sys_var_character_set_database(sys_var_chain *chain, const char *name_arg) :
|
|
sys_var_character_set(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
void set_default(THD *thd, enum_var_type type);
|
|
CHARSET_INFO **ci_ptr(THD *thd, enum_var_type type);
|
|
};
|
|
|
|
class sys_var_collation_sv :public sys_var_collation
|
|
{
|
|
CHARSET_INFO *SV::*offset;
|
|
CHARSET_INFO **global_default;
|
|
public:
|
|
sys_var_collation_sv(sys_var_chain *chain, const char *name_arg,
|
|
CHARSET_INFO *SV::*offset_arg,
|
|
CHARSET_INFO **global_default_arg)
|
|
:sys_var_collation(name_arg),
|
|
offset(offset_arg), global_default(global_default_arg)
|
|
{
|
|
chain_sys_var(chain);
|
|
}
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_key_cache_param :public sys_var
|
|
{
|
|
protected:
|
|
size_t offset;
|
|
public:
|
|
sys_var_key_cache_param(sys_var_chain *chain, const char *name_arg,
|
|
size_t offset_arg)
|
|
:sys_var(name_arg), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
bool check_default(enum_var_type type) { return 1; }
|
|
bool is_struct() { return 1; }
|
|
};
|
|
|
|
|
|
class sys_var_key_buffer_size :public sys_var_key_cache_param
|
|
{
|
|
public:
|
|
sys_var_key_buffer_size(sys_var_chain *chain, const char *name_arg)
|
|
:sys_var_key_cache_param(chain, name_arg,
|
|
offsetof(KEY_CACHE, param_buff_size))
|
|
{}
|
|
bool update(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_LONGLONG; }
|
|
};
|
|
|
|
|
|
class sys_var_key_cache_long :public sys_var_key_cache_param
|
|
{
|
|
public:
|
|
sys_var_key_cache_long(sys_var_chain *chain, const char *name_arg, size_t offset_arg)
|
|
:sys_var_key_cache_param(chain, name_arg, offset_arg)
|
|
{}
|
|
bool update(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_LONG; }
|
|
};
|
|
|
|
|
|
class sys_var_thd_date_time_format :public sys_var_thd
|
|
{
|
|
DATE_TIME_FORMAT *SV::*offset;
|
|
timestamp_type date_time_type;
|
|
public:
|
|
sys_var_thd_date_time_format(sys_var_chain *chain, const char *name_arg,
|
|
DATE_TIME_FORMAT *SV::*offset_arg,
|
|
timestamp_type date_time_type_arg)
|
|
:sys_var_thd(name_arg), offset(offset_arg),
|
|
date_time_type(date_time_type_arg)
|
|
{ chain_sys_var(chain); }
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return type != STRING_RESULT; /* Only accept strings */
|
|
}
|
|
bool check_default(enum_var_type type) { return 0; }
|
|
bool check(THD *thd, set_var *var);
|
|
bool update(THD *thd, set_var *var);
|
|
void update2(THD *thd, enum_var_type type, DATE_TIME_FORMAT *new_value);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
};
|
|
|
|
|
|
class sys_var_log_state :public sys_var_bool_ptr
|
|
{
|
|
uint log_type;
|
|
public:
|
|
sys_var_log_state(sys_var_chain *chain, const char *name_arg, my_bool *value_arg,
|
|
uint log_type_arg)
|
|
:sys_var_bool_ptr(chain, name_arg, value_arg), log_type(log_type_arg) {}
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
};
|
|
|
|
|
|
class sys_var_set :public sys_var
|
|
{
|
|
protected:
|
|
ulong *value;
|
|
TYPELIB *enum_names;
|
|
public:
|
|
sys_var_set(sys_var_chain *chain, const char *name_arg, ulong *value_arg,
|
|
TYPELIB *typelib, sys_after_update_func func)
|
|
:sys_var(name_arg, func), value(value_arg), enum_names(typelib)
|
|
{ chain_sys_var(chain); }
|
|
virtual bool check(THD *thd, set_var *var)
|
|
{
|
|
return check_set(thd, var, enum_names);
|
|
}
|
|
virtual void set_default(THD *thd, enum_var_type type)
|
|
{
|
|
*value= 0;
|
|
}
|
|
bool update(THD *thd, set_var *var);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
bool check_update_type(Item_result type) { return 0; }
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
};
|
|
|
|
class sys_var_set_slave_mode :public sys_var_set
|
|
{
|
|
public:
|
|
sys_var_set_slave_mode(sys_var_chain *chain, const char *name_arg,
|
|
ulong *value_arg,
|
|
TYPELIB *typelib, sys_after_update_func func) :
|
|
sys_var_set(chain, name_arg, value_arg, typelib, func) {}
|
|
void set_default(THD *thd, enum_var_type type);
|
|
bool check(THD *thd, set_var *var);
|
|
bool update(THD *thd, set_var *var);
|
|
};
|
|
|
|
class sys_var_log_output :public sys_var
|
|
{
|
|
ulong *value;
|
|
TYPELIB *enum_names;
|
|
public:
|
|
sys_var_log_output(sys_var_chain *chain, const char *name_arg, ulong *value_arg,
|
|
TYPELIB *typelib, sys_after_update_func func)
|
|
:sys_var(name_arg,func), value(value_arg), enum_names(typelib)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var)
|
|
{
|
|
return check_set(thd, var, enum_names);
|
|
}
|
|
bool update(THD *thd, set_var *var);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
bool check_update_type(Item_result type) { return 0; }
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
};
|
|
|
|
|
|
/* Variable that you can only read from */
|
|
|
|
class sys_var_readonly: public sys_var
|
|
{
|
|
public:
|
|
enum_var_type var_type;
|
|
SHOW_TYPE show_type_value;
|
|
sys_value_ptr_func value_ptr_func;
|
|
sys_var_readonly(sys_var_chain *chain, const char *name_arg, enum_var_type type,
|
|
SHOW_TYPE show_type_arg,
|
|
sys_value_ptr_func value_ptr_func_arg)
|
|
:sys_var(name_arg), var_type(type),
|
|
show_type_value(show_type_arg), value_ptr_func(value_ptr_func_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool update(THD *thd, set_var *var) { return 1; }
|
|
bool check_default(enum_var_type type) { return 1; }
|
|
bool check_type(enum_var_type type) { return type != var_type; }
|
|
bool check_update_type(Item_result type) { return 1; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{
|
|
return (*value_ptr_func)(thd);
|
|
}
|
|
SHOW_TYPE show_type() { return show_type_value; }
|
|
bool is_readonly() const { return 1; }
|
|
};
|
|
|
|
|
|
class sys_var_have_option: public sys_var
|
|
{
|
|
protected:
|
|
virtual SHOW_COMP_OPTION get_option() = 0;
|
|
public:
|
|
sys_var_have_option(sys_var_chain *chain, const char *variable_name):
|
|
sys_var(variable_name)
|
|
{ chain_sys_var(chain); }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base)
|
|
{
|
|
return (uchar*) show_comp_option_name[get_option()];
|
|
}
|
|
bool update(THD *thd, set_var *var) { return 1; }
|
|
bool check_default(enum_var_type type) { return 1; }
|
|
bool check_type(enum_var_type type) { return type != OPT_GLOBAL; }
|
|
bool check_update_type(Item_result type) { return 1; }
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool is_readonly() const { return 1; }
|
|
};
|
|
|
|
|
|
class sys_var_have_variable: public sys_var_have_option
|
|
{
|
|
SHOW_COMP_OPTION *have_variable;
|
|
|
|
public:
|
|
sys_var_have_variable(sys_var_chain *chain, const char *variable_name,
|
|
SHOW_COMP_OPTION *have_variable_arg):
|
|
sys_var_have_option(chain, variable_name),
|
|
have_variable(have_variable_arg)
|
|
{ }
|
|
SHOW_COMP_OPTION get_option() { return *have_variable; }
|
|
};
|
|
|
|
|
|
class sys_var_have_plugin: public sys_var_have_option
|
|
{
|
|
const char *plugin_name_str;
|
|
const uint plugin_name_len;
|
|
const int plugin_type;
|
|
|
|
public:
|
|
sys_var_have_plugin(sys_var_chain *chain, const char *variable_name,
|
|
const char *plugin_name_str_arg, uint plugin_name_len_arg,
|
|
int plugin_type_arg):
|
|
sys_var_have_option(chain, variable_name),
|
|
plugin_name_str(plugin_name_str_arg), plugin_name_len(plugin_name_len_arg),
|
|
plugin_type(plugin_type_arg)
|
|
{ }
|
|
/* the following method is declared in sql_plugin.cc */
|
|
SHOW_COMP_OPTION get_option();
|
|
};
|
|
|
|
|
|
class sys_var_thd_time_zone :public sys_var_thd
|
|
{
|
|
public:
|
|
sys_var_thd_time_zone(sys_var_chain *chain, const char *name_arg):
|
|
sys_var_thd(name_arg)
|
|
{
|
|
no_support_one_shot= 0;
|
|
chain_sys_var(chain);
|
|
}
|
|
bool check(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return type != STRING_RESULT; /* Only accept strings */
|
|
}
|
|
bool check_default(enum_var_type type) { return 0; }
|
|
bool update(THD *thd, set_var *var);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
virtual void set_default(THD *thd, enum_var_type type);
|
|
};
|
|
|
|
|
|
class sys_var_max_user_conn : public sys_var_thd
|
|
{
|
|
public:
|
|
sys_var_max_user_conn(sys_var_chain *chain, const char *name_arg):
|
|
sys_var_thd(name_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var);
|
|
bool update(THD *thd, set_var *var);
|
|
bool check_default(enum_var_type type)
|
|
{
|
|
return type != OPT_GLOBAL || !option_limits;
|
|
}
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_INT; }
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_microseconds :public sys_var_thd
|
|
{
|
|
ulonglong SV::*offset;
|
|
public:
|
|
sys_var_microseconds(sys_var_chain *chain, const char *name_arg,
|
|
ulonglong SV::*offset_arg):
|
|
sys_var_thd(name_arg), offset(offset_arg)
|
|
{ chain_sys_var(chain); }
|
|
bool check(THD *thd, set_var *var) {return 0;}
|
|
bool update(THD *thd, set_var *var);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
SHOW_TYPE show_type() { return SHOW_DOUBLE; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return (type != INT_RESULT && type != REAL_RESULT && type != DECIMAL_RESULT);
|
|
}
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
};
|
|
|
|
|
|
class sys_var_trust_routine_creators :public sys_var_bool_ptr
|
|
{
|
|
/* We need a derived class only to have a warn_deprecated() */
|
|
public:
|
|
sys_var_trust_routine_creators(sys_var_chain *chain,
|
|
const char *name_arg, my_bool *value_arg) :
|
|
sys_var_bool_ptr(chain, name_arg, value_arg) {};
|
|
void warn_deprecated(THD *thd);
|
|
void set_default(THD *thd, enum_var_type type);
|
|
bool update(THD *thd, set_var *var);
|
|
};
|
|
|
|
|
|
/**
|
|
Handler for setting the system variable --read-only.
|
|
*/
|
|
|
|
class sys_var_opt_readonly :public sys_var_bool_ptr
|
|
{
|
|
public:
|
|
sys_var_opt_readonly(sys_var_chain *chain, const char *name_arg,
|
|
my_bool *value_arg) :
|
|
sys_var_bool_ptr(chain, name_arg, value_arg) {};
|
|
~sys_var_opt_readonly() {};
|
|
bool update(THD *thd, set_var *var);
|
|
};
|
|
|
|
|
|
class sys_var_thd_lc_time_names :public sys_var_thd
|
|
{
|
|
public:
|
|
sys_var_thd_lc_time_names(sys_var_chain *chain, const char *name_arg):
|
|
sys_var_thd(name_arg)
|
|
{
|
|
#if MYSQL_VERSION_ID < 50000
|
|
no_support_one_shot= 0;
|
|
#endif
|
|
chain_sys_var(chain);
|
|
}
|
|
bool check(THD *thd, set_var *var);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return ((type != STRING_RESULT) && (type != INT_RESULT));
|
|
}
|
|
bool check_default(enum_var_type type) { return 0; }
|
|
bool update(THD *thd, set_var *var);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
virtual void set_default(THD *thd, enum_var_type type);
|
|
};
|
|
|
|
|
|
class sys_var_event_scheduler :public sys_var_long_ptr
|
|
{
|
|
/* We need a derived class only to have a warn_deprecated() */
|
|
public:
|
|
sys_var_event_scheduler(sys_var_chain *chain, const char *name_arg) :
|
|
sys_var_long_ptr(chain, name_arg, NULL, NULL) {};
|
|
bool update(THD *thd, set_var *var);
|
|
uchar *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base);
|
|
SHOW_TYPE show_type() { return SHOW_CHAR; }
|
|
bool check(THD *thd, set_var *var);
|
|
bool check_update_type(Item_result type)
|
|
{
|
|
return type != STRING_RESULT && type != INT_RESULT;
|
|
}
|
|
};
|
|
|
|
extern void fix_binlog_format_after_update(THD *thd, enum_var_type type);
|
|
|
|
class sys_var_thd_binlog_format :public sys_var_thd_enum
|
|
{
|
|
public:
|
|
sys_var_thd_binlog_format(sys_var_chain *chain, const char *name_arg,
|
|
ulong SV::*offset_arg)
|
|
:sys_var_thd_enum(chain, name_arg, offset_arg,
|
|
&binlog_format_typelib
|
|
, fix_binlog_format_after_update
|
|
)
|
|
{};
|
|
bool is_readonly() const;
|
|
};
|
|
|
|
/****************************************************************************
|
|
Classes for parsing of the SET command
|
|
****************************************************************************/
|
|
|
|
class set_var_base :public Sql_alloc
|
|
{
|
|
public:
|
|
set_var_base() {}
|
|
virtual ~set_var_base() {}
|
|
virtual int check(THD *thd)=0; /* To check privileges etc. */
|
|
virtual int update(THD *thd)=0; /* To set the value */
|
|
/* light check for PS */
|
|
virtual int light_check(THD *thd) { return check(thd); }
|
|
virtual bool no_support_one_shot() { return 1; }
|
|
};
|
|
|
|
|
|
/* MySQL internal variables, like query_cache_size */
|
|
|
|
class set_var :public set_var_base
|
|
{
|
|
public:
|
|
sys_var *var;
|
|
Item *value;
|
|
enum_var_type type;
|
|
union
|
|
{
|
|
CHARSET_INFO *charset;
|
|
ulong ulong_value;
|
|
ulonglong ulonglong_value;
|
|
plugin_ref plugin;
|
|
DATE_TIME_FORMAT *date_time_format;
|
|
Time_zone *time_zone;
|
|
MY_LOCALE *locale_value;
|
|
} save_result;
|
|
LEX_STRING base; /* for structs */
|
|
|
|
set_var(enum_var_type type_arg, sys_var *var_arg,
|
|
const LEX_STRING *base_name_arg, Item *value_arg)
|
|
:var(var_arg), type(type_arg), base(*base_name_arg)
|
|
{
|
|
/*
|
|
If the set value is a field, change it to a string to allow things like
|
|
SET table_type=MYISAM;
|
|
*/
|
|
if (value_arg && value_arg->type() == Item::FIELD_ITEM)
|
|
{
|
|
Item_field *item= (Item_field*) value_arg;
|
|
if (!(value=new Item_string(item->field_name,
|
|
(uint) strlen(item->field_name),
|
|
item->collation.collation)))
|
|
value=value_arg; /* Give error message later */
|
|
}
|
|
else
|
|
value=value_arg;
|
|
}
|
|
int check(THD *thd);
|
|
int update(THD *thd);
|
|
int light_check(THD *thd);
|
|
bool no_support_one_shot() { return var->no_support_one_shot; }
|
|
};
|
|
|
|
|
|
/* User variables like @my_own_variable */
|
|
|
|
class set_var_user: public set_var_base
|
|
{
|
|
Item_func_set_user_var *user_var_item;
|
|
public:
|
|
set_var_user(Item_func_set_user_var *item)
|
|
:user_var_item(item)
|
|
{}
|
|
int check(THD *thd);
|
|
int update(THD *thd);
|
|
int light_check(THD *thd);
|
|
};
|
|
|
|
/* For SET PASSWORD */
|
|
|
|
class set_var_password: public set_var_base
|
|
{
|
|
LEX_USER *user;
|
|
char *password;
|
|
public:
|
|
set_var_password(LEX_USER *user_arg,char *password_arg)
|
|
:user(user_arg), password(password_arg)
|
|
{}
|
|
int check(THD *thd);
|
|
int update(THD *thd);
|
|
};
|
|
|
|
|
|
/* For SET NAMES and SET CHARACTER SET */
|
|
|
|
class set_var_collation_client: public set_var_base
|
|
{
|
|
CHARSET_INFO *character_set_client;
|
|
CHARSET_INFO *character_set_results;
|
|
CHARSET_INFO *collation_connection;
|
|
public:
|
|
set_var_collation_client(CHARSET_INFO *client_coll_arg,
|
|
CHARSET_INFO *connection_coll_arg,
|
|
CHARSET_INFO *result_coll_arg)
|
|
:character_set_client(client_coll_arg),
|
|
character_set_results(result_coll_arg),
|
|
collation_connection(connection_coll_arg)
|
|
{}
|
|
int check(THD *thd);
|
|
int update(THD *thd);
|
|
};
|
|
|
|
|
|
extern "C"
|
|
{
|
|
typedef int (*process_key_cache_t) (const char *, KEY_CACHE *);
|
|
}
|
|
|
|
/* Named lists (used for keycaches) */
|
|
|
|
class NAMED_LIST :public ilink
|
|
{
|
|
const char *name;
|
|
uint name_length;
|
|
public:
|
|
uchar* data;
|
|
|
|
NAMED_LIST(I_List<NAMED_LIST> *links, const char *name_arg,
|
|
uint name_length_arg, uchar* data_arg)
|
|
:name_length(name_length_arg), data(data_arg)
|
|
{
|
|
name= my_strndup(name_arg, name_length, MYF(MY_WME));
|
|
links->push_back(this);
|
|
}
|
|
inline bool cmp(const char *name_cmp, uint length)
|
|
{
|
|
return length == name_length && !memcmp(name, name_cmp, length);
|
|
}
|
|
~NAMED_LIST()
|
|
{
|
|
my_free((uchar*) name, MYF(0));
|
|
}
|
|
friend bool process_key_caches(process_key_cache_t func);
|
|
friend void delete_elements(I_List<NAMED_LIST> *list,
|
|
void (*free_element)(const char*, uchar*));
|
|
};
|
|
|
|
/* updated in sql_acl.cc */
|
|
|
|
extern sys_var_thd_bool sys_old_alter_table;
|
|
extern sys_var_thd_bool sys_old_passwords;
|
|
extern LEX_STRING default_key_cache_base;
|
|
|
|
/* For sql_yacc */
|
|
struct sys_var_with_base
|
|
{
|
|
sys_var *var;
|
|
LEX_STRING base_name;
|
|
};
|
|
|
|
/*
|
|
Prototypes for helper functions
|
|
*/
|
|
|
|
int set_var_init();
|
|
void set_var_free();
|
|
int mysql_append_static_vars(const SHOW_VAR *show_vars, uint count);
|
|
SHOW_VAR* enumerate_sys_vars(THD *thd, bool sorted);
|
|
int mysql_add_sys_var_chain(sys_var *chain, struct my_option *long_options);
|
|
int mysql_del_sys_var_chain(sys_var *chain);
|
|
sys_var *find_sys_var(THD *thd, const char *str, uint length=0);
|
|
int sql_set_variables(THD *thd, List<set_var_base> *var_list);
|
|
bool not_all_support_one_shot(List<set_var_base> *var_list);
|
|
void fix_delay_key_write(THD *thd, enum_var_type type);
|
|
void fix_slave_exec_mode(enum_var_type type);
|
|
ulong fix_sql_mode(ulong sql_mode);
|
|
extern sys_var_const_str sys_charset_system;
|
|
extern sys_var_str sys_init_connect;
|
|
extern sys_var_str sys_init_slave;
|
|
extern sys_var_thd_time_zone sys_time_zone;
|
|
extern sys_var_thd_bit sys_autocommit;
|
|
CHARSET_INFO *get_old_charset_by_name(const char *old_name);
|
|
uchar* find_named(I_List<NAMED_LIST> *list, const char *name, uint length,
|
|
NAMED_LIST **found);
|
|
|
|
extern sys_var_str sys_var_general_log_path, sys_var_slow_log_path;
|
|
|
|
/* key_cache functions */
|
|
KEY_CACHE *get_key_cache(LEX_STRING *cache_name);
|
|
KEY_CACHE *get_or_create_key_cache(const char *name, uint length);
|
|
void free_key_cache(const char *name, KEY_CACHE *key_cache);
|
|
bool process_key_caches(process_key_cache_t func);
|
|
void delete_elements(I_List<NAMED_LIST> *list,
|
|
void (*free_element)(const char*, uchar*));
|