diff options
Diffstat (limited to 'sql/set_var.h')
| -rw-r--r-- | sql/set_var.h | 187 |
1 files changed, 121 insertions, 66 deletions
diff --git a/sql/set_var.h b/sql/set_var.h index 78b34963e9d..6000e155db9 100644 --- a/sql/set_var.h +++ b/sql/set_var.h @@ -1,9 +1,8 @@ -/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB +/* 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; either version 2 of the License, or - (at your option) any later version. + 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 @@ -46,22 +45,18 @@ public: const char *name; sys_after_update_func after_update; -#if MYSQL_VERSION_ID < 50000 bool no_support_one_shot; -#endif sys_var(const char *name_arg, sys_after_update_func func= NULL) :name(name_arg), after_update(func) -#if MYSQL_VERSION_ID < 50000 , no_support_one_shot(1) -#endif {} virtual ~sys_var() {} virtual bool check(THD *thd, set_var *var); bool check_enum(THD *thd, set_var *var, 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, enum_var_type type) {} - virtual SHOW_TYPE type() { return SHOW_UNDEF; } + virtual void set_default(THD *thd_arg, enum_var_type type) {} + virtual SHOW_TYPE show_type() { return SHOW_UNDEF; } virtual byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base) { return 0; } virtual bool check_type(enum_var_type type) @@ -72,6 +67,7 @@ public: { 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; } }; @@ -100,14 +96,16 @@ class sys_var_long_ptr_global: public sys_var_global { public: ulong *value; - sys_var_long_ptr_global(const char *name_arg, ulong *value_ptr, + sys_var_long_ptr_global(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) {} + :sys_var_global(name_arg, after_update_arg, guard_arg), + value(value_ptr_arg) + {} 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 type() { return SHOW_LONG; } + SHOW_TYPE show_type() { return SHOW_LONG; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base) { return (byte*) value; } }; @@ -129,14 +127,14 @@ class sys_var_ulonglong_ptr :public sys_var { public: ulonglong *value; - sys_var_ulonglong_ptr(const char *name_arg, ulonglong *value_ptr) - :sys_var(name_arg),value(value_ptr) {} - sys_var_ulonglong_ptr(const char *name_arg, ulonglong *value_ptr, + sys_var_ulonglong_ptr(const char *name_arg, ulonglong *value_ptr_arg) + :sys_var(name_arg),value(value_ptr_arg) {} + sys_var_ulonglong_ptr(const char *name_arg, ulonglong *value_ptr_arg, sys_after_update_func func) - :sys_var(name_arg,func), value(value_ptr) {} + :sys_var(name_arg,func), value(value_ptr_arg) {} bool update(THD *thd, set_var *var); void set_default(THD *thd, enum_var_type type); - SHOW_TYPE type() { return SHOW_LONGLONG; } + SHOW_TYPE show_type() { return SHOW_LONGLONG; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base) { return (byte*) value; } }; @@ -155,7 +153,7 @@ public: } bool update(THD *thd, set_var *var); void set_default(THD *thd, enum_var_type type); - SHOW_TYPE type() { return SHOW_MY_BOOL; } + SHOW_TYPE show_type() { return SHOW_MY_BOOL; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base) { return (byte*) value; } bool check_update_type(Item_result type) { return 0; } @@ -187,7 +185,7 @@ public: { (*set_default_func)(thd, type); } - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base) { return (byte*) value; } bool check_update_type(Item_result type) @@ -213,7 +211,7 @@ public: { return 1; } - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base) { return (byte*) value; @@ -223,6 +221,36 @@ public: 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(const char *name_arg, char **value_arg) + :sys_var(name_arg),value(value_arg) + {} + 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; } + byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base) + { + return (byte*) *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; } }; @@ -240,7 +268,7 @@ public: return check_enum(thd, var, enum_names); } bool update(THD *thd, set_var *var); - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); bool check_update_type(Item_result type) { return 0; } }; @@ -275,7 +303,7 @@ public: 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 type() { return SHOW_LONG; } + SHOW_TYPE show_type() { return SHOW_LONG; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); }; @@ -293,7 +321,7 @@ public: {} bool update(THD *thd, set_var *var); void set_default(THD *thd, enum_var_type type); - SHOW_TYPE type() { return SHOW_HA_ROWS; } + SHOW_TYPE show_type() { return SHOW_HA_ROWS; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); }; @@ -313,7 +341,7 @@ public: {} bool update(THD *thd, set_var *var); void set_default(THD *thd, enum_var_type type); - SHOW_TYPE type() { return SHOW_LONGLONG; } + SHOW_TYPE show_type() { return SHOW_LONGLONG; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); bool check_default(enum_var_type type) { @@ -339,7 +367,7 @@ public: {} bool update(THD *thd, set_var *var); void set_default(THD *thd, enum_var_type type); - SHOW_TYPE type() { return SHOW_MY_BOOL; } + SHOW_TYPE show_type() { return SHOW_MY_BOOL; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); bool check(THD *thd, set_var *var) { @@ -370,7 +398,7 @@ public: } bool update(THD *thd, set_var *var); void set_default(THD *thd, enum_var_type type); - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); bool check_update_type(Item_result type) { return 0; } }; @@ -391,6 +419,8 @@ public: } void set_default(THD *thd, enum_var_type type); byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); + static byte *symbolic_mode_representation(THD *thd, ulong sql_mode, + ulong *length); }; @@ -403,7 +433,7 @@ public: :sys_var_thd(name_arg), offset(offset_arg) {} bool check(THD *thd, set_var *var); -SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } bool check_update_type(Item_result type) { return type != STRING_RESULT; /* Only accept strings */ @@ -429,11 +459,11 @@ class sys_var_thd_bit :public sys_var_thd sys_check_func check_func; sys_update_func update_func; public: - ulong bit_flag; + ulonglong bit_flag; bool reverse; sys_var_thd_bit(const char *name_arg, sys_check_func c_func, sys_update_func u_func, - ulong bit, bool reverse_arg=0) + 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) {} @@ -441,7 +471,7 @@ public: 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 type() { return SHOW_MY_BOOL; } + SHOW_TYPE show_type() { return SHOW_MY_BOOL; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); }; @@ -456,7 +486,7 @@ public: 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 type() { return SHOW_LONG; } + SHOW_TYPE show_type() { return SHOW_LONG; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); }; @@ -467,7 +497,7 @@ public: sys_var_last_insert_id(const char *name_arg) :sys_var(name_arg) {} bool update(THD *thd, set_var *var); bool check_type(enum_var_type type) { return type == OPT_GLOBAL; } - SHOW_TYPE type() { return SHOW_LONGLONG; } + SHOW_TYPE show_type() { return SHOW_LONGLONG; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); }; @@ -478,7 +508,7 @@ public: sys_var_insert_id(const char *name_arg) :sys_var(name_arg) {} bool update(THD *thd, set_var *var); bool check_type(enum_var_type type) { return type == OPT_GLOBAL; } - SHOW_TYPE type() { return SHOW_LONGLONG; } + SHOW_TYPE show_type() { return SHOW_LONGLONG; } byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); }; @@ -500,8 +530,8 @@ public: class sys_var_sync_binlog_period :public sys_var_long_ptr { public: - sys_var_sync_binlog_period(const char *name_arg, ulong *value_ptr) - :sys_var_long_ptr(name_arg,value_ptr) {} + sys_var_sync_binlog_period(const char *name_arg, ulong *value_ptr_arg) + :sys_var_long_ptr(name_arg,value_ptr_arg) {} bool update(THD *thd, set_var *var); }; #endif @@ -528,12 +558,10 @@ class sys_var_collation :public sys_var_thd public: sys_var_collation(const char *name_arg) :sys_var_thd(name_arg) { -#if MYSQL_VERSION_ID < 50000 no_support_one_shot= 0; -#endif } bool check(THD *thd, set_var *var); -SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } bool check_update_type(Item_result type) { return ((type != STRING_RESULT) && (type != INT_RESULT)); @@ -550,16 +578,14 @@ public: sys_var_thd(name_arg) { nullable= 0; -#if MYSQL_VERSION_ID < 50000 /* 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; -#endif } bool check(THD *thd, set_var *var); - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } bool check_update_type(Item_result type) { return ((type != STRING_RESULT) && (type != INT_RESULT)); @@ -571,6 +597,15 @@ public: virtual CHARSET_INFO **ci_ptr(THD *thd, enum_var_type type)= 0; }; +class sys_var_character_set_filesystem :public sys_var_character_set +{ +public: + sys_var_character_set_filesystem(const char *name_arg) : + sys_var_character_set(name_arg) {} + void set_default(THD *thd, enum_var_type type); + CHARSET_INFO **ci_ptr(THD *thd, enum_var_type type); +}; + class sys_var_character_set_client :public sys_var_character_set { public: @@ -595,9 +630,6 @@ class sys_var_character_set_server :public sys_var_character_set public: sys_var_character_set_server(const char *name_arg) : sys_var_character_set(name_arg) {} -#if defined(HAVE_REPLICATION) && (MYSQL_VERSION_ID < 50000) - bool check(THD *thd, set_var *var); -#endif void set_default(THD *thd, enum_var_type type); CHARSET_INFO **ci_ptr(THD *thd, enum_var_type type); }; @@ -633,9 +665,6 @@ class sys_var_collation_server :public sys_var_collation { public: sys_var_collation_server(const char *name_arg) :sys_var_collation(name_arg) {} -#if defined(HAVE_REPLICATION) && (MYSQL_VERSION_ID < 50000) - bool check(THD *thd, set_var *var); -#endif bool update(THD *thd, set_var *var); void set_default(THD *thd, enum_var_type type); byte *value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); @@ -672,7 +701,7 @@ public: :sys_var_key_cache_param(name_arg, offsetof(KEY_CACHE, param_buff_size)) {} bool update(THD *thd, set_var *var); - SHOW_TYPE type() { return SHOW_LONGLONG; } + SHOW_TYPE show_type() { return SHOW_LONGLONG; } }; @@ -683,7 +712,7 @@ public: :sys_var_key_cache_param(name_arg, offset_arg) {} bool update(THD *thd, set_var *var); - SHOW_TYPE type() { return SHOW_LONG; } + SHOW_TYPE show_type() { return SHOW_LONG; } }; @@ -698,7 +727,7 @@ public: :sys_var_thd(name_arg), offset(offset_arg), date_time_type(date_time_type_arg) {} - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } bool check_update_type(Item_result type) { return type != STRING_RESULT; /* Only accept strings */ @@ -718,13 +747,13 @@ class sys_var_readonly: public sys_var { public: enum_var_type var_type; - SHOW_TYPE show_type; + SHOW_TYPE show_type_value; sys_value_ptr_func value_ptr_func; sys_var_readonly(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(show_type_arg), value_ptr_func(value_ptr_func_arg) + show_type_value(show_type_arg), value_ptr_func(value_ptr_func_arg) {} bool update(THD *thd, set_var *var) { return 1; } bool check_default(enum_var_type type) { return 1; } @@ -734,7 +763,8 @@ public: { return (*value_ptr_func)(thd); } - SHOW_TYPE type() { return show_type; } + SHOW_TYPE show_type() { return show_type_value; } + bool is_readonly() const { return 1; } }; class sys_var_thd_time_zone :public sys_var_thd @@ -743,12 +773,10 @@ public: sys_var_thd_time_zone(const char *name_arg): sys_var_thd(name_arg) { -#if MYSQL_VERSION_ID < 50000 no_support_one_shot= 0; -#endif } bool check(THD *thd, set_var *var); - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } bool check_update_type(Item_result type) { return type != STRING_RESULT; /* Only accept strings */ @@ -759,6 +787,35 @@ public: 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(const char *name_arg): + sys_var_thd(name_arg) {} + 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; } + byte *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(const char *name_arg, my_bool *value_arg) : + sys_var_bool_ptr(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); +}; + + class sys_var_thd_lc_time_names :public sys_var_thd { public: @@ -770,7 +827,7 @@ public: #endif } bool check(THD *thd, set_var *var); - SHOW_TYPE type() { return SHOW_CHAR; } + SHOW_TYPE show_type() { return SHOW_CHAR; } bool check_update_type(Item_result type) { return ((type != STRING_RESULT) && (type != INT_RESULT)); @@ -794,9 +851,7 @@ public: virtual int update(THD *thd)=0; /* To set the value */ /* light check for PS */ virtual int light_check(THD *thd) { return check(thd); } -#if MYSQL_VERSION_ID < 50000 virtual bool no_support_one_shot() { return 1; } -#endif }; @@ -819,8 +874,8 @@ public: } save_result; LEX_STRING base; /* for structs */ - set_var(enum_var_type type_arg, sys_var *var_arg, LEX_STRING *base_name_arg, - Item *value_arg) + 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) { /* @@ -830,7 +885,8 @@ public: if (value_arg && value_arg->type() == Item::FIELD_ITEM) { Item_field *item= (Item_field*) value_arg; - if (!(value=new Item_string(item->field_name, strlen(item->field_name), + if (!(value=new Item_string(item->field_name, + (uint) strlen(item->field_name), item->collation.collation))) value=value_arg; /* Give error message later */ } @@ -840,9 +896,7 @@ public: int check(THD *thd); int update(THD *thd); int light_check(THD *thd); -#if MYSQL_VERSION_ID < 50000 bool no_support_one_shot() { return var->no_support_one_shot; } -#endif }; @@ -908,7 +962,7 @@ public: uint name_length_arg, gptr data_arg) :name_length(name_length_arg), data(data_arg) { - name= my_strdup_with_length((byte*) name_arg, name_length, MYF(MY_WME)); + name= my_strdup_with_length(name_arg, name_length, MYF(MY_WME)); links->push_back(this); } inline bool cmp(const char *name_cmp, uint length) @@ -948,10 +1002,11 @@ 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); ulong fix_sql_mode(ulong sql_mode); -extern sys_var_str sys_charset_system; +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); gptr find_named(I_List<NAMED_LIST> *list, const char *name, uint length, NAMED_LIST **found); |