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/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/* drop and alter of tablespaces */
#include "mariadb.h"
#include "sql_priv.h"
#include "unireg.h"
#include "sql_tablespace.h"
#include "sql_table.h" // write_bin_log
#include "sql_class.h" // THD
/**
Check if tablespace name is valid
@param tablespace_name Name of the tablespace
@note Tablespace names are not reflected in the file system, so
character case conversion or consideration is not relevant.
@note Checking for path characters or ending space is not done.
The only checks are for identifier length, both in terms of
number of characters and number of bytes.
@retval IDENT_NAME_OK Identifier name is ok (Success)
@retval IDENT_NAME_WRONG Identifier name is wrong, if length == 0
* (ER_WRONG_TABLESPACE_NAME)
@retval IDENT_NAME_TOO_LONG Identifier name is too long if it is greater
than 64 characters (ER_TOO_LONG_IDENT)
@note In case of IDENT_NAME_TOO_LONG or IDENT_NAME_WRONG, the function
reports an error (using my_error()).
*/
enum_ident_name_check check_tablespace_name(const char *tablespace_name)
{
size_t name_length= 0; //< Length as number of bytes
size_t name_length_symbols= 0; //< Length as number of symbols
// Name must be != NULL and length must be > 0
if (!tablespace_name || (name_length= strlen(tablespace_name)) == 0)
{
my_error(ER_WRONG_TABLESPACE_NAME, MYF(0), tablespace_name);
return IDENT_NAME_WRONG;
}
// If we do not have too many bytes, we must check the number of symbols,
// provided the system character set may use more than one byte per symbol.
if (name_length <= NAME_LEN && use_mb(system_charset_info))
{
const char *name= tablespace_name; //< The actual tablespace name
const char *end= name + name_length; //< Pointer to first byte after name
// Loop over all symbols as long as we don't have too many already
while (name != end && name_length_symbols <= NAME_CHAR_LEN)
{
int len= my_ismbchar(system_charset_info, name, end);
if (len)
name += len;
else
name++;
name_length_symbols++;
}
}
if (name_length_symbols > NAME_CHAR_LEN || name_length > NAME_LEN)
{
my_error(ER_TOO_LONG_IDENT, MYF(0), tablespace_name);
return IDENT_NAME_TOO_LONG;
}
return IDENT_NAME_OK;
}
int mysql_alter_tablespace(THD *thd, st_alter_tablespace *ts_info)
{
int error= HA_ADMIN_NOT_IMPLEMENTED;
handlerton *hton= ts_info->storage_engine;
DBUG_ENTER("mysql_alter_tablespace");
/*
If the user haven't defined an engine, this will fallback to using the
default storage engine.
*/
if (hton == NULL || hton->state != SHOW_OPTION_YES)
{
hton= ha_default_handlerton(thd);
if (ts_info->storage_engine != 0)
push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
ER_WARN_USING_OTHER_HANDLER,
ER_THD(thd, ER_WARN_USING_OTHER_HANDLER),
hton_name(hton)->str,
ts_info->tablespace_name ? ts_info->tablespace_name
: ts_info->logfile_group_name);
}
if (hton->alter_tablespace)
{
if ((error= hton->alter_tablespace(hton, thd, ts_info)))
{
if (error == 1)
{
DBUG_RETURN(1);
}
if (error == HA_ADMIN_NOT_IMPLEMENTED)
{
my_error(ER_CHECK_NOT_IMPLEMENTED, MYF(0), "");
}
else
{
my_error(error, MYF(0));
}
DBUG_RETURN(error);
}
}
else
{
push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
ER_ILLEGAL_HA_CREATE_OPTION,
ER_THD(thd, ER_ILLEGAL_HA_CREATE_OPTION),
hton_name(hton)->str,
"TABLESPACE or LOGFILE GROUP");
}
error= write_bin_log(thd, FALSE, thd->query(), thd->query_length());
DBUG_RETURN(error);
}
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