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3Copyright (c) 2010, 2019, Oracle and/or its affiliates. All Rights Reserved.
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25*****************************************************************************/
26
27/** @file include/dict0priv.ic
28 Data dictionary system private include file
29
30 Created  Wed 13 Oct 2010 16:10:14 EST Sunny Bains
31 ***********************************************************************/
32
33#include "dict0dict.h"
34#include "dict0load.h"
35#include "dict0priv.h"
36
37/** Gets a table; loads it to the dictionary cache if necessary. A low-level
38 function.
39 @return table, NULL if not found */
40UNIV_INLINE
41dict_table_t *dict_table_get_low(const char *table_name) /*!< in: table name */
42{
43  dict_table_t *table;
44
45  ut_ad(table_name);
46  ut_ad(mutex_own(&dict_sys->mutex));
47
48  table = dict_table_check_if_in_cache_low(table_name);
49
50  if (table && table->is_corrupted()) {
51    ib::error error(ER_IB_MSG_1229);
52    error << "Table " << table->name << "is corrupted";
53    if (srv_load_corrupted) {
54      error << ", but innodb_force_load_corrupted is set";
55    } else {
56      return (nullptr);
57    }
58  }
59
60  if (table == nullptr) {
61    table = dict_load_table(table_name, true, DICT_ERR_IGNORE_NONE);
62  }
63
64  ut_ad(!table || table->cached);
65
66  return (table);
67}
68
69/** Checks if a table is in the dictionary cache.
70 @return table, NULL if not found */
71UNIV_INLINE
72dict_table_t *dict_table_check_if_in_cache_low(
73    const char *table_name) /*!< in: table name */
74{
75  dict_table_t *table;
76  ulint table_fold;
77
78  DBUG_TRACE;
79  DBUG_PRINT("dict_table_check_if_in_cache_low", ("table: '%s'", table_name));
80
81  ut_ad(table_name);
82  ut_ad(mutex_own(&dict_sys->mutex));
83
84  /* Look for the table name in the hash table */
85  table_fold = ut_fold_string(table_name);
86
87  HASH_SEARCH(name_hash, dict_sys->table_hash, table_fold, dict_table_t *,
88              table, ut_ad(table->cached),
89              !strcmp(table->name.m_name, table_name));
90  return table;
91}
92