1 files changed, 79 insertions, 25 deletions

diff --git a/sql/set_var.h b/sql/set_var.h
index 1ae3a18111f..c029f83788f 100644
--- a/sql/set_var.h
+++ b/sql/set_var.h
@@ -46,14 +46,10 @@ 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);
@@ -72,6 +68,7 @@ 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; }
 };
 
 
@@ -223,6 +220,36 @@ 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 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; }
 };
 
 
@@ -391,6 +418,8 @@ 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);
 };
 
 
@@ -528,9 +557,7 @@ 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; }
@@ -550,13 +577,11 @@ 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; }
@@ -571,6 +596,15 @@ 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 +629,6 @@ 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 +664,6 @@ 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);
@@ -735,6 +763,7 @@ public:
     return (*value_ptr_func)(thd);
   }
   SHOW_TYPE type() { return show_type; }
+  bool is_readonly() const { return 1; }
 };
 
 class sys_var_thd_time_zone :public sys_var_thd
@@ -743,9 +772,7 @@ 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; }
@@ -759,11 +786,40 @@ 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 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:
   sys_var_thd_lc_time_names(const char *name_arg):
-    sys_var_thd(name_arg) 
+    sys_var_thd(name_arg)
   {}
   bool check(THD *thd, set_var *var);
   SHOW_TYPE type() { return SHOW_CHAR; }
@@ -790,9 +846,7 @@ 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
 };
 
 
@@ -815,7 +869,7 @@ public:
   } save_result;
   LEX_STRING base;			/* for structs */
 
-  set_var(enum_var_type type_arg, sys_var *var_arg, LEX_STRING *base_name_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)
   {
@@ -826,7 +880,8 @@ 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 */
     }
@@ -836,9 +891,7 @@ 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
 };
 
 
@@ -904,7 +957,7 @@ 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)
@@ -944,10 +997,11 @@ 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);