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  • Committer: Brian Aker
  • Date: 2011-02-04 09:29:39 UTC
  • mfrom: (2139.3.6 catalogs)
  • mto: This revision was merged to the branch mainline in revision 2144.
  • Revision ID: brian@tangent.org-20110204092939-nlwrimamw0fxxhgl
Main bit of this patch is that Inno now just uses the identifier so we only
have one spot to make changes for paths.

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drizzled/session.cc
21
21
 * @file Implementation of the Session class and API
22
22
 */
23
23
 
24
 
#include <config.h>
25
 
 
26
 
#include <drizzled/copy_field.h>
27
 
#include <drizzled/data_home.h>
28
 
#include <drizzled/display.h>
29
 
#include <drizzled/drizzled.h>
30
 
#include <drizzled/error.h>
31
 
#include <drizzled/gettext.h>
32
 
#include <drizzled/identifier.h>
33
 
#include <drizzled/internal/iocache.h>
34
 
#include <drizzled/internal/thread_var.h>
35
 
#include <drizzled/internal_error_handler.h>
36
 
#include <drizzled/item/cache.h>
37
 
#include <drizzled/item/empty_string.h>
38
 
#include <drizzled/item/float.h>
39
 
#include <drizzled/item/return_int.h>
40
 
#include <drizzled/lock.h>
41
 
#include <drizzled/plugin/authentication.h>
42
 
#include <drizzled/plugin/client.h>
43
 
#include <drizzled/plugin/event_observer.h>
44
 
#include <drizzled/plugin/logging.h>
45
 
#include <drizzled/plugin/query_rewrite.h>
46
 
#include <drizzled/plugin/scheduler.h>
47
 
#include <drizzled/plugin/transactional_storage_engine.h>
48
 
#include <drizzled/probes.h>
49
 
#include <drizzled/pthread_globals.h>
50
 
#include <drizzled/query_id.h>
51
 
#include <drizzled/refresh_version.h>
52
 
#include <drizzled/select_dump.h>
53
 
#include <drizzled/select_exists_subselect.h>
54
 
#include <drizzled/select_export.h>
55
 
#include <drizzled/select_max_min_finder_subselect.h>
56
 
#include <drizzled/select_singlerow_subselect.h>
57
 
#include <drizzled/select_subselect.h>
58
 
#include <drizzled/select_to_file.h>
59
 
#include <drizzled/session.h>
60
 
#include <drizzled/session/cache.h>
61
 
#include <drizzled/show.h>
62
 
#include <drizzled/sql_base.h>
63
 
#include <drizzled/table/singular.h>
64
 
#include <drizzled/table_proto.h>
65
 
#include <drizzled/tmp_table_param.h>
66
 
#include <drizzled/transaction_services.h>
67
 
#include <drizzled/user_var_entry.h>
68
 
#include <drizzled/util/functors.h>
69
 
#include <plugin/myisam/myisam.h>
70
 
 
 
24
#include "config.h"
 
25
#include "drizzled/session.h"
 
26
#include "drizzled/session/cache.h"
 
27
#include <sys/stat.h>
 
28
#include "drizzled/error.h"
 
29
#include "drizzled/gettext.h"
 
30
#include "drizzled/query_id.h"
 
31
#include "drizzled/data_home.h"
 
32
#include "drizzled/sql_base.h"
 
33
#include "drizzled/lock.h"
 
34
#include "drizzled/item/cache.h"
 
35
#include "drizzled/item/float.h"
 
36
#include "drizzled/item/return_int.h"
 
37
#include "drizzled/item/empty_string.h"
 
38
#include "drizzled/show.h"
 
39
#include "drizzled/plugin/client.h"
 
40
#include "drizzled/plugin/scheduler.h"
 
41
#include "drizzled/plugin/authentication.h"
 
42
#include "drizzled/plugin/logging.h"
 
43
#include "drizzled/plugin/transactional_storage_engine.h"
 
44
#include "drizzled/plugin/query_rewrite.h"
 
45
#include "drizzled/probes.h"
 
46
#include "drizzled/table_proto.h"
 
47
#include "drizzled/db.h"
 
48
#include "drizzled/pthread_globals.h"
 
49
#include "drizzled/transaction_services.h"
 
50
#include "drizzled/drizzled.h"
 
51
 
 
52
#include "drizzled/identifier.h"
 
53
 
 
54
#include "drizzled/table/singular.h"
 
55
 
 
56
#include "plugin/myisam/myisam.h"
 
57
#include "drizzled/internal/iocache.h"
 
58
#include "drizzled/internal/thread_var.h"
 
59
#include "drizzled/plugin/event_observer.h"
 
60
 
 
61
#include "drizzled/util/functors.h"
 
62
 
 
63
#include "drizzled/display.h"
 
64
 
 
65
#include <fcntl.h>
71
66
#include <algorithm>
72
67
#include <climits>
73
 
#include <fcntl.h>
74
 
#include <sys/stat.h>
75
68
 
76
69
#include <boost/filesystem.hpp>
77
70
#include <boost/checked_delete.hpp>
78
71
 
79
 
#include <drizzled/util/backtrace.h>
80
 
 
81
 
#include <drizzled/schema.h>
 
72
#include "drizzled/util/backtrace.h"
82
73
 
83
74
using namespace std;
84
75
 
123
114
  return fd;
124
115
}
125
116
 
 
117
int session_tablespace_op(const Session *session)
 
118
{
 
119
  return test(session->tablespace_op);
 
120
}
 
121
 
 
122
/**
 
123
   Set the process info field of the Session structure.
 
124
 
 
125
   This function is used by plug-ins. Internally, the
 
126
   Session::set_proc_info() function should be used.
 
127
 
 
128
   @see Session::set_proc_info
 
129
 */
 
130
void set_session_proc_info(Session *session, const char *info)
 
131
{
 
132
  session->set_proc_info(info);
 
133
}
 
134
 
 
135
const char *get_session_proc_info(Session *session)
 
136
{
 
137
  return session->get_proc_info();
 
138
}
 
139
 
126
140
void **Session::getEngineData(const plugin::MonitoredInTransaction *monitored)
127
141
{
128
142
  return static_cast<void **>(&ha_data[monitored->getId()].ha_ptr);
139
153
  return session->options & test_options;
140
154
}
141
155
 
 
156
int session_sql_command(const Session *session)
 
157
{
 
158
  return (int) session->lex->sql_command;
 
159
}
 
160
 
 
161
enum_tx_isolation session_tx_isolation(const Session *session)
 
162
{
 
163
  return (enum_tx_isolation)session->variables.tx_isolation;
 
164
}
 
165
 
142
166
Session::Session(plugin::Client *client_arg, catalog::Instance::shared_ptr catalog_arg) :
143
167
  Open_tables_state(refresh_version),
144
168
  mem_root(&main_mem_root),
188
212
  is_fatal_error(false),
189
213
  transaction_rollback_request(false),
190
214
  is_fatal_sub_stmt_error(0),
 
215
  derived_tables_processing(false),
191
216
  tablespace_op(false),
192
 
  derived_tables_processing(false),
193
217
  m_lip(NULL),
194
218
  cached_table(0),
195
219
  transaction_message(NULL),
237
261
  open_options=ha_open_options;
238
262
  update_lock_default= TL_WRITE;
239
263
  session_tx_isolation= (enum_tx_isolation) variables.tx_isolation;
240
 
  warn_list.clear();
 
264
  warn_list.empty();
241
265
  memset(warn_count, 0, sizeof(warn_count));
242
266
  memset(&status_var, 0, sizeof(status_var));
243
267
 
311
335
  m_internal_handler= NULL;
312
336
}
313
337
 
314
 
void Session::get_xid(DrizzleXid *xid)
 
338
void Session::get_xid(DRIZZLE_XID *xid)
315
339
{
316
 
  *xid = *(DrizzleXid *) &transaction.xid_state.xid;
 
340
  *xid = *(DRIZZLE_XID *) &transaction.xid_state.xid;
317
341
}
318
342
 
319
343
/* Do operations that may take a long time */
397
421
 
398
422
  plugin::Logging::postEndDo(this);
399
423
  plugin::EventObserver::deregisterSessionEvents(*this); 
 
424
 
 
425
  for (PropertyMap::iterator iter= life_properties.begin(); iter != life_properties.end(); iter++)
 
426
  {
 
427
    boost::checked_delete((*iter).second);
 
428
  }
 
429
  life_properties.clear();
400
430
}
401
431
 
402
432
void Session::setClient(plugin::Client *client_arg)
592
622
*/
593
623
bool Session::isViewable(identifier::User::const_reference user_arg) const
594
624
{
595
 
  return plugin::Authorization::isAuthorized(user_arg, *this, false);
 
625
  return plugin::Authorization::isAuthorized(user_arg, this, false);
596
626
}
597
627
 
598
628
 
635
665
                        const std::string &in_db)
636
666
{
637
667
  bool is_authenticated=
638
 
    plugin::Authentication::isAuthenticated(*user(), passwd_str);
 
668
    plugin::Authentication::isAuthenticated(user(), passwd_str);
639
669
 
640
670
  if (is_authenticated != true)
641
671
  {
648
678
  if (not in_db.empty())
649
679
  {
650
680
    identifier::Schema identifier(in_db);
651
 
    if (schema::change(*this, identifier))
 
681
    if (change_db(this, identifier))
652
682
    {
653
683
      /* change_db() has pushed the error message. */
654
684
      return false;
718
748
    plugin::QueryRewriter::rewriteQuery(*_schema, *new_query);
719
749
  }
720
750
  query.reset(new_query);
721
 
  _state.reset(new session::State(in_packet, in_packet_length));
 
751
  _state.reset(new State(in_packet, in_packet_length));
722
752
 
723
753
  return true;
724
754
}
808
838
{
809
839
  bool result= true;
810
840
 
811
 
  assert(! inTransaction());
812
 
 
813
 
  options|= OPTION_BEGIN;
814
 
  server_status|= SERVER_STATUS_IN_TRANS;
815
 
 
816
 
  if (plugin::TransactionalStorageEngine::notifyStartTransaction(this, opt))
 
841
  if (! endActiveTransaction())
817
842
  {
818
843
    result= false;
819
844
  }
 
845
  else
 
846
  {
 
847
    options|= OPTION_BEGIN;
 
848
    server_status|= SERVER_STATUS_IN_TRANS;
 
849
 
 
850
    if (plugin::TransactionalStorageEngine::notifyStartTransaction(this, opt))
 
851
    {
 
852
      result= false;
 
853
    }
 
854
  }
820
855
 
821
856
  return result;
822
857
}
876
911
                                     bool allocate_lex_string)
877
912
{
878
913
  if (allocate_lex_string)
879
 
    if (!(lex_str= (LEX_STRING *)getMemRoot()->allocate(sizeof(LEX_STRING))))
 
914
    if (!(lex_str= (LEX_STRING *)alloc(sizeof(LEX_STRING))))
880
915
      return 0;
881
916
  if (!(lex_str->str= mem_root->strmake_root(str, length)))
882
917
    return 0;
1090
1125
 
1091
1126
  /* Check if there is any blobs in data */
1092
1127
  {
1093
 
    List<Item>::iterator li(list.begin());
 
1128
    List_iterator_fast<Item> li(list);
1094
1129
    Item *item;
1095
1130
    while ((item=li++))
1096
1131
    {
1155
1190
  row_count++;
1156
1191
  Item *item;
1157
1192
  uint32_t used_length=0,items_left=items.elements;
1158
 
  List<Item>::iterator li(items.begin());
 
1193
  List_iterator_fast<Item> li(items);
1159
1194
 
1160
1195
  if (my_b_write(cache,(unsigned char*) exchange->line_start->ptr(),
1161
1196
                 exchange->line_start->length()))
1344
1379
 
1345
1380
bool select_dump::send_data(List<Item> &items)
1346
1381
{
1347
 
  List<Item>::iterator li(items.begin());
 
1382
  List_iterator_fast<Item> li(items);
1348
1383
  char buff[MAX_FIELD_WIDTH];
1349
1384
  String tmp(buff,sizeof(buff),&my_charset_bin),*res;
1350
1385
  tmp.length(0);
1397
1432
    unit->offset_limit_cnt--;
1398
1433
    return(0);
1399
1434
  }
1400
 
  List<Item>::iterator li(items.begin());
 
1435
  List_iterator_fast<Item> li(items);
1401
1436
  Item *val_item;
1402
1437
  for (uint32_t i= 0; (val_item= li++); i++)
1403
1438
    it->store(i, val_item);
1415
1450
bool select_max_min_finder_subselect::send_data(List<Item> &items)
1416
1451
{
1417
1452
  Item_maxmin_subselect *it= (Item_maxmin_subselect *)item;
1418
 
  List<Item>::iterator li(items.begin());
 
1453
  List_iterator_fast<Item> li(items);
1419
1454
  Item *val_item= li++;
1420
1455
  it->register_value();
1421
1456
  if (it->assigned())
1617
1652
  @param  session   Thread handle
1618
1653
  @param  all   true <=> rollback main transaction.
1619
1654
*/
1620
 
void Session::markTransactionForRollback(bool all)
 
1655
void mark_transaction_to_rollback(Session *session, bool all)
1621
1656
{
1622
 
  is_fatal_sub_stmt_error= true;
1623
 
  transaction_rollback_request= all;
 
1657
  if (session)
 
1658
  {
 
1659
    session->is_fatal_sub_stmt_error= true;
 
1660
    session->transaction_rollback_request= all;
 
1661
  }
1624
1662
}
1625
1663
 
1626
1664
void Session::disconnect(enum error_t errcode)
2012
2050
  }
2013
2051
}
2014
2052
 
 
2053
bool Session::TableMessages::storeTableMessage(const identifier::Table &identifier, message::Table &table_message)
 
2054
{
 
2055
  table_message_cache.insert(make_pair(identifier.getPath(), table_message));
 
2056
 
 
2057
  return true;
 
2058
}
 
2059
 
 
2060
bool Session::TableMessages::removeTableMessage(const identifier::Table &identifier)
 
2061
{
 
2062
  TableMessageCache::iterator iter;
 
2063
 
 
2064
  iter= table_message_cache.find(identifier.getPath());
 
2065
 
 
2066
  if (iter == table_message_cache.end())
 
2067
    return false;
 
2068
 
 
2069
  table_message_cache.erase(iter);
 
2070
 
 
2071
  return true;
 
2072
}
 
2073
 
 
2074
bool Session::TableMessages::getTableMessage(const identifier::Table &identifier, message::Table &table_message)
 
2075
{
 
2076
  TableMessageCache::iterator iter;
 
2077
 
 
2078
  iter= table_message_cache.find(identifier.getPath());
 
2079
 
 
2080
  if (iter == table_message_cache.end())
 
2081
    return false;
 
2082
 
 
2083
  table_message.CopyFrom(((*iter).second));
 
2084
 
 
2085
  return true;
 
2086
}
 
2087
 
 
2088
bool Session::TableMessages::doesTableMessageExist(const identifier::Table &identifier)
 
2089
{
 
2090
  TableMessageCache::iterator iter;
 
2091
 
 
2092
  iter= table_message_cache.find(identifier.getPath());
 
2093
 
 
2094
  if (iter == table_message_cache.end())
 
2095
  {
 
2096
    return false;
 
2097
  }
 
2098
 
 
2099
  return true;
 
2100
}
 
2101
 
 
2102
bool Session::TableMessages::renameTableMessage(const identifier::Table &from, const identifier::Table &to)
 
2103
{
 
2104
  TableMessageCache::iterator iter;
 
2105
 
 
2106
  table_message_cache[to.getPath()]= table_message_cache[from.getPath()];
 
2107
 
 
2108
  iter= table_message_cache.find(to.getPath());
 
2109
 
 
2110
  if (iter == table_message_cache.end())
 
2111
  {
 
2112
    return false;
 
2113
  }
 
2114
 
 
2115
  (*iter).second.set_schema(to.getSchemaName());
 
2116
  (*iter).second.set_name(to.getTableName());
 
2117
 
 
2118
  return true;
 
2119
}
 
2120
 
2015
2121
table::Singular *Session::getInstanceTable()
2016
2122
{
2017
2123
  temporary_shares.push_back(new table::Singular()); // This will not go into the tableshare cache, so no key is used.