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change structure of udf_func and parameter of functions mysql_drop_func and add_func (SCRUM)

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This commit is contained in:
wax@mysql.com 2003-01-09 18:09:21 +05:00
parent e4b9df7ba5
commit aeff9672f2
5 changed files with 35 additions and 35 deletions
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4
sql/item_func.cc
View file

@ -1292,11 +1292,11 @@ udf_handler::fix_fields(THD *thd, TABLE_LIST *tables, Item_result_field *func,
}
else
thd=current_thd; // In WHERE / const clause
udf_func *tmp_udf=find_udf(u_d->name,(uint) strlen(u_d->name),1);
udf_func *tmp_udf=find_udf(u_d->name.str,(uint) u_d->name.length,1);
if (!tmp_udf)
{
my_printf_error(ER_CANT_FIND_UDF,ER(ER_CANT_FIND_UDF),MYF(0),u_d->name,
my_printf_error(ER_CANT_FIND_UDF,ER(ER_CANT_FIND_UDF),MYF(0),u_d->name.str,
errno);
DBUG_RETURN(1);
}

2
sql/sql_parse.cc
View file

@ -2583,7 +2583,7 @@ mysql_execute_command(THD *thd)
if (check_access(thd,DELETE_ACL,"mysql",0,1))
break;
#ifdef HAVE_DLOPEN
if (!(res = mysql_drop_function(thd,lex->udf.name)))
if (!(res = mysql_drop_function(thd,&lex->udf.name)))
send_ok(thd);
#else
res= -1;

49
sql/sql_udf.cc
View file

@ -74,7 +74,7 @@ static HASH udf_hash;
static rw_lock_t THR_LOCK_udf;
static udf_func *add_udf(char *name, Item_result ret, char *dl,
static udf_func *add_udf(LEX_STRING *name, Item_result ret, char *dl,
Item_udftype typ);
static void del_udf(udf_func *udf);
static void *find_udf_dl(const char *dl);
@ -84,8 +84,8 @@ static void init_syms(udf_func *tmp)
{
char nm[MAX_FIELD_NAME+16],*end;
tmp->func = dlsym(tmp->dlhandle, tmp->name);
end=strmov(nm,tmp->name);
tmp->func = dlsym(tmp->dlhandle, tmp->name.str);
end=strmov(nm,tmp->name.str);
(void) strmov(end,"_init");
tmp->func_init = dlsym(tmp->dlhandle, nm);
(void) strmov(end,"_deinit");
@ -103,8 +103,8 @@ extern "C" byte* get_hash_key(const byte *buff,uint *length,
my_bool not_used __attribute__((unused)))
{
udf_func *udf=(udf_func*) buff;
*length=(uint) udf->name_length;
return (byte*) udf->name;
*length=(uint) udf->name.length;
return (byte*) udf->name.str;
}
/*
@ -161,14 +161,16 @@ void udf_init()
while (!(error = read_record_info.read_record(&read_record_info)))
{
DBUG_PRINT("info",("init udf record"));
char *name=get_field(&mem, table, 0);
LEX_STRING name;
name.str=get_field(&mem, table, 0);
name.length = strlen(name.str);
char *dl_name= get_field(&mem, table, 2);
bool new_dl=0;
Item_udftype udftype=UDFTYPE_FUNCTION;
if (table->fields >= 4) // New func table
udftype=(Item_udftype) table->field[3]->val_int();
if (!(tmp = add_udf(name,(Item_result) table->field[1]->val_int(),
if (!(tmp = add_udf(&name,(Item_result) table->field[1]->val_int(),
dl_name, udftype)))
{
sql_print_error("Can't alloc memory for udf function: name");
@ -250,10 +252,10 @@ static void del_udf(udf_func *udf)
The functions will be automaticly removed when the least threads
doesn't use it anymore
*/
char *name= udf->name;
uint name_length=udf->name_length;
udf->name=(char*) "*";
udf->name_length=1;
char *name= udf->name.str;
uint name_length=udf->name.length;
udf->name.str=(char*) "*";
udf->name.length=1;
hash_update(&udf_hash,(byte*) udf,(byte*) name,name_length);
}
DBUG_VOID_RETURN;
@ -322,7 +324,7 @@ static void *find_udf_dl(const char *dl)
/* Assume that name && dl is already allocated */
static udf_func *add_udf(char *name, Item_result ret, char *dl,
static udf_func *add_udf(LEX_STRING *name, Item_result ret, char *dl,
Item_udftype type)
{
if (!name || !dl || !(uint) type || (uint) type > (uint) UDFTYPE_AGGREGATE)
@ -331,8 +333,7 @@ static udf_func *add_udf(char *name, Item_result ret, char *dl,
if (!tmp)
return 0;
bzero((char*) tmp,sizeof(*tmp));
tmp->name = name;
tmp->name_length=(uint) strlen(tmp->name);
tmp->name = *name; //dup !!
tmp->dl = dl;
tmp->returns = ret;
tmp->type = type;
@ -370,14 +371,14 @@ int mysql_create_function(THD *thd,udf_func *udf)
send_error(thd, ER_UDF_NO_PATHS,ER(ER_UDF_NO_PATHS));
DBUG_RETURN(1);
}
if (udf->name_length > NAME_LEN)
if (udf->name.length > NAME_LEN)
{
net_printf(thd, ER_TOO_LONG_IDENT,udf->name);
DBUG_RETURN(1);
}
rw_wrlock(&THR_LOCK_udf);
if ((hash_search(&udf_hash,(byte*) udf->name, udf->name_length)))
if ((hash_search(&udf_hash,(byte*) &udf->name, udf->name.length)))
{
net_printf(thd, ER_UDF_EXISTS, udf->name);
goto err;
@ -401,9 +402,9 @@ int mysql_create_function(THD *thd,udf_func *udf)
net_printf(thd, ER_CANT_FIND_DL_ENTRY, udf->name);
goto err;
}
udf->name=strdup_root(&mem,udf->name);
udf->name.str=strdup_root(&mem,udf->name.str);
udf->dl=strdup_root(&mem,udf->dl);
if (!(u_d=add_udf(udf->name,udf->returns,udf->dl,udf->type)))
if (!(u_d=add_udf(&udf->name,udf->returns,udf->dl,udf->type)))
{
send_error(thd,0); // End of memory
goto err;
@ -425,7 +426,7 @@ int mysql_create_function(THD *thd,udf_func *udf)
goto err;
restore_record(table,2); // Get default values for fields
table->field[0]->store(u_d->name, u_d->name_length, default_charset_info);
table->field[0]->store(u_d->name.str, u_d->name.length, default_charset_info);
table->field[1]->store((longlong) u_d->returns);
table->field[2]->store(u_d->dl,(uint) strlen(u_d->dl), default_charset_info);
if (table->fields >= 4) // If not old func format
@ -450,7 +451,7 @@ int mysql_create_function(THD *thd,udf_func *udf)
}
int mysql_drop_function(THD *thd,const char *udf_name)
int mysql_drop_function(THD *thd,const LEX_STRING *udf_name)
{
TABLE *table;
TABLE_LIST tables;
@ -462,8 +463,8 @@ int mysql_drop_function(THD *thd,const char *udf_name)
DBUG_RETURN(1);
}
rw_wrlock(&THR_LOCK_udf);
if (!(udf=(udf_func*) hash_search(&udf_hash,(byte*) udf_name,
(uint) strlen(udf_name))))
if (!(udf=(udf_func*) hash_search(&udf_hash,(byte*) udf_name->str,
(uint) udf_name->length)))
{
net_printf(thd, ER_FUNCTION_NOT_DEFINED, udf_name);
goto err;
@ -481,8 +482,8 @@ int mysql_drop_function(THD *thd,const char *udf_name)
tables.real_name= tables.alias= (char*) "func";
if (!(table = open_ltable(thd,&tables,TL_WRITE)))
goto err;
if (!table->file->index_read_idx(table->record[0],0,(byte*) udf_name,
(uint) strlen(udf_name),
if (!table->file->index_read_idx(table->record[0],0,(byte*) udf_name->str,
(uint) udf_name->length,
HA_READ_KEY_EXACT))
{
int error;

7
sql/sql_udf.h
View file

@ -25,8 +25,7 @@ enum Item_udftype {UDFTYPE_FUNCTION=1,UDFTYPE_AGGREGATE};
typedef struct st_udf_func
{
char *name;
int name_length;
LEX_STRING name;
Item_result returns;
Item_udftype type;
char *dl;
@ -61,7 +60,7 @@ class udf_handler :public Sql_alloc
initialized(0)
{}
~udf_handler();
const char *name() const { return u_d ? u_d->name : "?"; }
const char *name() const { return u_d ? u_d->name.str : "?"; }
Item_result result_type () const
{ return u_d ? u_d->returns : STRING_RESULT;}
bool get_arguments();
@ -140,5 +139,5 @@ void udf_init(void),udf_free(void);
udf_func *find_udf(const char *name, uint len=0,bool mark_used=0);
void free_udf(udf_func *udf);
int mysql_create_function(THD *thd,udf_func *udf);
int mysql_drop_function(THD *thd,const char *name);
int mysql_drop_function(THD *thd,const LEX_STRING *name);
#endif

8
sql/sql_yacc.yy
View file

@ -865,11 +865,11 @@ create:
lex->create_info.options=$3;
lex->create_info.table_charset=$5;
}
| CREATE udf_func_type UDF_SYM ident
| CREATE udf_func_type UDF_SYM IDENT
{
LEX *lex=Lex;
lex->sql_command = SQLCOM_CREATE_FUNCTION;
lex->udf.name=$4.str;
lex->udf.name=&$4;
lex->udf.name_length=$4.length;
lex->udf.type= $2;
}
@ -2941,11 +2941,11 @@ drop:
lex->drop_if_exists=$3;
lex->name=$4.str;
}
| DROP UDF_SYM ident
| DROP UDF_SYM IDENT
{
LEX *lex=Lex;
lex->sql_command = SQLCOM_DROP_FUNCTION;
lex->udf.name=$3.str;
lex->udf.name=&$3;
};