CHARSET_INFO *get_charset(uint cs_number, myf flags)
{
CHARSET_INFO *cs;
MY_CHARSET_LOADER loader;
if (cs_number == default_charset_info->number)
return default_charset_info;
my_pthread_once(&charsets_initialized, init_available_charsets);
if (cs_number >= array_elements(all_charsets))
return NULL;
my_charset_loader_init_mysys(&loader);
cs= get_internal_charset(&loader, cs_number, flags);
if (!cs && (flags & MY_WME))
{
char index_file[FN_REFLEN + sizeof(MY_CHARSET_INDEX)], cs_string[23];
my_stpcpy(get_charsets_dir(index_file),MY_CHARSET_INDEX);
cs_string[0]='#';
int10_to_str(cs_number, cs_string+1, 10);
my_error(EE_UNKNOWN_CHARSET, MYF(ME_BELL), cs_string, index_file);
}
return cs;
}
CHARSET_INFO *get_charset_by_name(const char *cs_name, myf flags)
{
uint cs_number;
CHARSET_INFO *cs;
my_pthread_once(&charsets_initialized, init_available_charsets);
cs_number=get_collation_number(cs_name);
cs= cs_number ? get_internal_charset(cs_number,flags) : NULL;
if (!cs && (flags & MY_WME))
{
char index_file[FN_REFLEN + sizeof(MY_CHARSET_INDEX)];
strmov(get_charsets_dir(index_file),MY_CHARSET_INDEX);
my_error(EE_UNKNOWN_COLLATION, MYF(ME_BELL), cs_name, index_file);
}
return cs;
}
CHARSET_INFO *
my_collation_get_by_name(MY_CHARSET_LOADER *loader,
const char *name, myf flags)
{
uint cs_number;
CHARSET_INFO *cs;
my_thread_once(&charsets_initialized, init_available_charsets);
cs_number= get_collation_number(name);
my_charset_loader_init_mysys(loader);
cs= cs_number ? get_internal_charset(loader, cs_number, flags) : NULL;
if (!cs && (flags & MY_WME))
{
char index_file[FN_REFLEN + sizeof(MY_CHARSET_INDEX)];
my_stpcpy(get_charsets_dir(index_file),MY_CHARSET_INDEX);
my_error(EE_UNKNOWN_COLLATION, MYF(0), name, index_file);
}
return cs;
}
CHARSET_INFO *get_charset_by_csname(const char *cs_name,
uint cs_flags,
myf flags)
{
uint cs_number;
CHARSET_INFO *cs;
DBUG_ENTER("get_charset_by_csname");
DBUG_PRINT("enter",("name: '%s'", cs_name));
my_pthread_once(&charsets_initialized, init_available_charsets);
cs_number= get_charset_number(cs_name, cs_flags);
cs= cs_number ? get_internal_charset(cs_number, flags) : NULL;
if (!cs && (flags & MY_WME))
{
char index_file[FN_REFLEN + sizeof(MY_CHARSET_INDEX)];
strmov(get_charsets_dir(index_file),MY_CHARSET_INDEX);
my_error(EE_UNKNOWN_CHARSET, MYF(ME_BELL), cs_name, index_file);
}
DBUG_RETURN(cs);
}
CHARSET_INFO *get_charset(uint cs_number, myf flags)
{
CHARSET_INFO *cs;
if (cs_number == default_charset_info->number)
return default_charset_info;
(void) init_available_charsets(MYF(0)); /* If it isn't initialized */
if (!cs_number || cs_number >= array_elements(all_charsets)-1)
return NULL;
cs=get_internal_charset(cs_number, flags);
if (!cs && (flags & MY_WME))
{
char index_file[FN_REFLEN + sizeof(MY_CHARSET_INDEX)], cs_string[23];
strmov(get_charsets_dir(index_file),MY_CHARSET_INDEX);
cs_string[0]='#';
int10_to_str(cs_number, cs_string+1, 10);
my_error(EE_UNKNOWN_CHARSET, MYF(ME_BELL), cs_string, index_file);
}
return cs;
}
