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/*****************************************************************************
Copyright (c) 2010, 2014, 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 Street, Fifth Floor, Boston, MA 02110-1335 USA
*****************************************************************************/
/******************************************************************//**
@file include/dict0priv.ic
Data dictionary system private include file
Created Wed 13 Oct 2010 16:10:14 EST Sunny Bains
***********************************************************************/
#include "dict0dict.h"
#include "dict0load.h"
#include "dict0priv.h"
/**********************************************************************//**
Gets a table; loads it to the dictionary cache if necessary. A low-level
function.
@return table, NULL if not found */
UNIV_INLINE
dict_table_t*
dict_table_get_low(
/*===============*/
const char* table_name) /*!< in: table name */
{
dict_table_t* table;
ut_ad(table_name);
ut_ad(mutex_own(&dict_sys->mutex));
table = dict_table_check_if_in_cache_low(table_name);
if (table && table->corrupted) {
ib::error error;
error << "Table " << table->name << "is corrupted";
if (srv_load_corrupted) {
error << ", but innodb_force_load_corrupted is set";
} else {
return(NULL);
}
}
if (table == NULL) {
table = dict_load_table(table_name, DICT_ERR_IGNORE_NONE);
}
ut_ad(!table || table->cached);
return(table);
}
/**********************************************************************//**
Returns a table object based on table id.
@return table, NULL if does not exist */
UNIV_INLINE
dict_table_t*
dict_table_open_on_id_low(
/*======================*/
table_id_t table_id, /*!< in: table id */
dict_err_ignore_t ignore_err, /*!< in: errors to ignore
when loading the table */
ibool open_only_if_in_cache)
{
dict_table_t* table;
ulint fold;
ut_ad(mutex_own(&dict_sys->mutex));
/* Look for the table name in the hash table */
fold = ut_fold_ull(table_id);
HASH_SEARCH(id_hash, dict_sys->table_id_hash, fold,
dict_table_t*, table, ut_ad(table->cached),
table->id == table_id);
if (table == NULL && !open_only_if_in_cache) {
table = dict_load_table_on_id(table_id, ignore_err);
}
ut_ad(!table || table->cached);
/* TODO: should get the type information from MySQL */
return(table);
}
/**********************************************************************//**
Checks if a table is in the dictionary cache.
@return table, NULL if not found */
UNIV_INLINE
dict_table_t*
dict_table_check_if_in_cache_low(
/*=============================*/
const char* table_name) /*!< in: table name */
{
dict_table_t* table;
ulint table_fold;
DBUG_ENTER("dict_table_check_if_in_cache_low");
DBUG_PRINT("dict_table_check_if_in_cache_low",
("table: '%s'", table_name));
ut_ad(table_name);
ut_ad(mutex_own(&dict_sys->mutex));
/* Look for the table name in the hash table */
table_fold = ut_fold_string(table_name);
HASH_SEARCH(name_hash, dict_sys->table_hash, table_fold,
dict_table_t*, table, ut_ad(table->cached),
!strcmp(table->name.m_name, table_name));
DBUG_RETURN(table);
}
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