24
24
#include "config.h"
25
#include "drizzled/session.h"
26
#include "drizzled/session/cache.h"
25
#include <drizzled/session.h>
26
#include "drizzled/session_list.h"
27
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"
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
40
#include "drizzled/plugin/scheduler.h"
41
41
#include "drizzled/plugin/authentication.h"
42
42
#include "drizzled/plugin/logging.h"
43
43
#include "drizzled/plugin/transactional_storage_engine.h"
44
#include "drizzled/plugin/query_rewrite.h"
45
44
#include "drizzled/probes.h"
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45
#include "drizzled/table_proto.h"
47
46
#include "drizzled/db.h"
49
48
#include "drizzled/transaction_services.h"
50
49
#include "drizzled/drizzled.h"
52
#include "drizzled/identifier.h"
54
#include "drizzled/table/instance.h"
51
#include "drizzled/table_share_instance.h"
56
53
#include "plugin/myisam/myisam.h"
57
54
#include "drizzled/internal/iocache.h"
58
55
#include "drizzled/internal/thread_var.h"
59
56
#include "drizzled/plugin/event_observer.h"
61
#include "drizzled/util/functors.h"
63
#include "drizzled/display.h"
66
59
#include <algorithm>
68
#include <boost/filesystem.hpp>
70
#include "drizzled/util/backtrace.h"
72
62
using namespace std;
74
namespace fs=boost::filesystem;
83
71
char empty_c_string[1]= {0}; /* used for not defined db */
85
73
const char * const Session::DEFAULT_WHERE= "field list";
74
extern pthread_key_t THR_Session;
75
extern pthread_key_t THR_Mem_root;
87
77
bool Key_part_spec::operator==(const Key_part_spec& other) const
89
79
return length == other.length &&
90
80
field_name.length == other.field_name.length &&
91
!my_strcasecmp(system_charset_info, field_name.str, other.field_name.str);
81
!strcmp(field_name.str, other.field_name.str);
94
84
Open_tables_state::Open_tables_state(uint64_t version_arg) :
164
154
Session::Session(plugin::Client *client_arg) :
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155
Open_tables_state(refresh_version),
166
156
mem_root(&main_mem_root),
169
query(new std::string),
170
_schema(new std::string("")),
172
159
client(client_arg),
174
161
scheduler_arg(NULL),
175
162
lock_id(&main_lock_id),
177
security_ctx(identifier::User::make_shared()),
179
164
ha_data(plugin::num_trx_monitored_objects),
180
concurrent_execute_allowed(true),
181
165
arg_of_last_insert_id_function(false),
182
166
first_successful_insert_id_in_prev_stmt(0),
183
167
first_successful_insert_id_in_cur_stmt(0),
184
168
limit_found_rows(0),
185
_global_read_lock(NONE),
187
170
some_tables_deleted(false),
188
171
no_errors(false),
319
boost_unique_lock_t scopedLock(mysys_var->mutex);
300
pthread_mutex_lock(&mysys_var->mutex);
320
301
if (mysys_var->current_cond)
322
mysys_var->current_mutex->lock();
323
mysys_var->current_cond->notify_all();
324
mysys_var->current_mutex->unlock();
303
pthread_mutex_lock(mysys_var->current_mutex);
304
pthread_cond_broadcast(mysys_var->current_cond);
305
pthread_mutex_unlock(mysys_var->current_mutex);
307
pthread_mutex_unlock(&mysys_var->mutex);
328
310
void Session::pop_internal_handler()
382
362
if (client->isConnected())
384
assert(security_ctx);
385
364
if (global_system_variables.log_warnings)
387
errmsg_printf(ERRMSG_LVL_WARN, ER(ER_FORCING_CLOSE),
388
internal::my_progname,
390
security_ctx->username().c_str());
365
errmsg_printf(ERRMSG_LVL_WARN, ER(ER_FORCING_CLOSE),internal::my_progname,
367
(getSecurityContext().getUser().c_str() ?
368
getSecurityContext().getUser().c_str() : ""));
393
369
disconnect(0, false);
408
384
dbug_sentry= Session_SENTRY_GONE;
410
386
main_mem_root.free_root(MYF(0));
411
currentMemRoot().release();
412
currentSession().release();
387
pthread_setspecific(THR_Session, 0);
414
389
plugin::Logging::postEndDo(this);
415
390
plugin::EventObserver::deregisterSessionEvents(*this);
417
for (PropertyMap::iterator iter= life_properties.begin(); iter != life_properties.end(); iter++)
419
delete (*iter).second;
421
life_properties.clear();
424
void Session::setClient(plugin::Client *client_arg)
427
client->setSession(this);
430
void Session::awake(Session::killed_state_t state_to_set)
432
if ((state_to_set == Session::KILL_QUERY) and (command == COM_SLEEP))
392
/* Ensure that no one is using Session */
393
LOCK_delete.unlock();
396
void Session::awake(Session::killed_state state_to_set)
435
398
this->checkSentry();
437
setKilled(state_to_set);
438
scheduler->killSession(this);
399
safe_mutex_assert_owner(&LOCK_delete);
401
killed= state_to_set;
440
402
if (state_to_set != Session::KILL_QUERY)
404
scheduler->killSession(this);
442
405
DRIZZLE_CONNECTION_DONE(thread_id);
447
boost_unique_lock_t scopedLock(mysys_var->mutex);
409
pthread_mutex_lock(&mysys_var->mutex);
450
411
This broadcast could be up in the air if the victim thread
451
412
exits the cond in the time between read and broadcast, but that is
452
413
ok since all we want to do is to make the victim thread get out
578
537
current_global_counters.connections++;
579
arg->thread_id= arg->variables.pseudo_thread_id= global_thread_id++;
581
session::Cache::singleton().insert(arg);
583
if (unlikely(plugin::EventObserver::connectSession(*arg)))
585
// We should do something about an error...
588
if (plugin::Scheduler::getScheduler()->addSession(arg))
590
DRIZZLE_CONNECTION_START(arg->getSessionId());
538
thread_id= variables.pseudo_thread_id= global_thread_id++;
540
LOCK_thread_count.lock();
541
getSessionList().push_back(this);
542
LOCK_thread_count.unlock();
544
if (scheduler->addSession(this))
546
DRIZZLE_CONNECTION_START(thread_id);
591
547
char error_message_buff[DRIZZLE_ERRMSG_SIZE];
593
arg->setKilled(Session::KILL_CONNECTION);
549
killed= Session::KILL_CONNECTION;
595
arg->status_var.aborted_connects++;
551
status_var.aborted_connects++;
597
553
/* Can't use my_error() since store_globals has not been called. */
598
554
/* TODO replace will better error message */
599
555
snprintf(error_message_buff, sizeof(error_message_buff),
600
556
ER(ER_CANT_CREATE_THREAD), 1);
601
arg->client->sendError(ER_CANT_CREATE_THREAD, error_message_buff);
557
client->sendError(ER_CANT_CREATE_THREAD, error_message_buff);
611
Is this session viewable by the current user?
613
bool Session::isViewable() const
615
return plugin::Authorization::isAuthorized(current_session->user(),
621
const char* Session::enter_cond(boost::condition_variable_any &cond, boost::mutex &mutex, const char* msg)
565
const char* Session::enter_cond(boost::condition_variable &cond, boost::mutex &mutex, const char* msg)
623
567
const char* old_msg = get_proc_info();
624
568
safe_mutex_assert_owner(mutex);
625
mysys_var->current_mutex = &mutex;
626
mysys_var->current_cond = &cond;
569
mysys_var->current_mutex = mutex.native_handle();
570
mysys_var->current_cond = cond.native_handle();
627
571
this->set_proc_info(msg);
636
580
locked (if that would not be the case, you'll get a deadlock if someone
637
581
does a Session::awake() on you).
639
mysys_var->current_mutex->unlock();
640
boost_unique_lock_t scopedLock(mysys_var->mutex);
583
pthread_mutex_unlock(mysys_var->current_mutex);
584
pthread_mutex_lock(&mysys_var->mutex);
641
585
mysys_var->current_mutex = 0;
642
586
mysys_var->current_cond = 0;
643
587
this->set_proc_info(old_msg);
588
pthread_mutex_unlock(&mysys_var->mutex);
646
591
bool Session::authenticate()
649
594
if (client->authenticate())
657
bool Session::checkUser(const std::string &passwd_str,
658
const std::string &in_db)
602
bool Session::checkUser(const char *passwd, uint32_t passwd_len, const char *in_db)
604
const string passwd_str(passwd, passwd_len);
660
605
bool is_authenticated=
661
plugin::Authentication::isAuthenticated(user(), passwd_str);
606
plugin::Authentication::isAuthenticated(getSecurityContext(),
663
609
if (is_authenticated != true)
700
646
main_da.reset_diagnostics_area();
702
648
if (client->readCommand(&l_packet, &packet_length) == false)
707
if (getKilled() == KILL_CONNECTION)
710
651
if (packet_length == 0)
713
l_command= static_cast<enum_server_command>(l_packet[0]);
654
l_command= (enum enum_server_command) (unsigned char) l_packet[0];
715
656
if (command >= COM_END)
716
657
command= COM_END; // Wrong command
718
659
assert(packet_length);
719
return not dispatch_command(l_command, this, l_packet+1, (uint32_t) (packet_length-1));
660
return ! dispatch_command(l_command, this, l_packet+1, (uint32_t) (packet_length-1));
722
663
bool Session::readAndStoreQuery(const char *in_packet, uint32_t in_packet_length)
728
669
in_packet_length--;
730
671
const char *pos= in_packet + in_packet_length; /* Point at end null */
731
while (in_packet_length > 0 && (pos[-1] == ';' || my_isspace(charset() ,pos[-1])))
672
while (in_packet_length > 0 &&
673
(pos[-1] == ';' || my_isspace(charset() ,pos[-1])))
734
676
in_packet_length--;
737
std::string *new_query= new std::string(in_packet, in_packet + in_packet_length);
738
// We can not be entirely sure _schema has a value
741
plugin::QueryRewriter::rewriteQuery(*_schema, *new_query);
743
query.reset(new_query);
744
_state.reset(new State(in_packet, in_packet_length));
679
query.assign(in_packet, in_packet + in_packet_length);
1044
static int create_file(Session *session,
1045
fs::path &target_path,
1046
file_exchange *exchange,
1047
internal::IO_CACHE *cache)
977
static int create_file(Session *session, char *path, file_exchange *exchange, internal::IO_CACHE *cache)
1049
fs::path to_file(exchange->file_name);
1052
if (not to_file.has_root_directory())
980
uint32_t option= MY_UNPACK_FILENAME | MY_RELATIVE_PATH;
982
#ifdef DONT_ALLOW_FULL_LOAD_DATA_PATHS
983
option|= MY_REPLACE_DIR; // Force use of db directory
986
if (!internal::dirname_length(exchange->file_name))
1054
target_path= fs::system_complete(getDataHomeCatalog());
1055
util::string::const_shared_ptr schema(session->schema());
1056
if (schema and not schema->empty())
1058
int count_elements= 0;
1059
for (fs::path::iterator iter= to_file.begin();
1060
iter != to_file.end();
1061
++iter, ++count_elements)
1064
if (count_elements == 1)
1066
target_path /= *schema;
1069
target_path /= to_file;
988
strcpy(path, data_home_real);
989
if (! session->db.empty())
990
strncat(path, session->db.c_str(), FN_REFLEN-strlen(data_home_real)-1);
991
(void) internal::fn_format(path, exchange->file_name, path, "", option);
1073
target_path = exchange->file_name;
1076
if (not secure_file_priv.string().empty())
1078
if (target_path.file_string().substr(0, secure_file_priv.file_string().size()) != secure_file_priv.file_string())
1080
/* Write only allowed to dir or subdir specified by secure_file_priv */
1081
my_error(ER_OPTION_PREVENTS_STATEMENT, MYF(0), "--secure-file-priv");
1086
if (!access(target_path.file_string().c_str(), F_OK))
994
(void) internal::fn_format(path, exchange->file_name, data_home_real, "", option);
996
if (opt_secure_file_priv &&
997
strncmp(opt_secure_file_priv, path, strlen(opt_secure_file_priv)))
999
/* Write only allowed to dir or subdir specified by secure_file_priv */
1000
my_error(ER_OPTION_PREVENTS_STATEMENT, MYF(0), "--secure-file-priv");
1004
if (!access(path, F_OK))
1088
1006
my_error(ER_FILE_EXISTS_ERROR, MYF(0), exchange->file_name);
1091
1009
/* Create the file world readable */
1092
if ((file= internal::my_create(target_path.file_string().c_str(), 0666, O_WRONLY|O_EXCL, MYF(MY_WME))) < 0)
1010
if ((file= internal::my_create(path, 0666, O_WRONLY|O_EXCL, MYF(MY_WME))) < 0)
1094
1012
(void) fchmod(file, 0666); // Because of umask()
1095
if (cache->init_io_cache(file, 0L, internal::WRITE_CACHE, 0L, 1, MYF(MY_WME)))
1013
if (init_io_cache(cache, file, 0L, internal::WRITE_CACHE, 0L, 1, MYF(MY_WME)))
1097
1015
internal::my_close(file, MYF(0));
1098
internal::my_delete(target_path.file_string().c_str(), MYF(0)); // Delete file on error, it was just created
1016
internal::my_delete(path, MYF(0)); // Delete file on error, it was just created
1325
1239
for (; length > sizeof(space) ; length-=sizeof(space))
1327
1241
if (my_b_write(cache,(unsigned char*) space,sizeof(space)))
1330
1244
if (my_b_write(cache,(unsigned char*) space,length))
1334
1248
if (res && enclosed)
1336
1250
if (my_b_write(cache, (unsigned char*) exchange->enclosed->ptr(),
1337
1251
exchange->enclosed->length()))
1340
1254
if (--items_left)
1342
1256
if (my_b_write(cache, (unsigned char*) exchange->field_term->ptr(),
1343
1257
field_term_length))
1347
1261
if (my_b_write(cache,(unsigned char*) exchange->line_term->ptr(),
1348
1262
exchange->line_term->length()))
1457
1372
switch (val_item->result_type())
1459
1374
case REAL_RESULT:
1460
op= &select_max_min_finder_subselect::cmp_real;
1375
op= &select_max_min_finder_subselect::cmp_real;
1462
1377
case INT_RESULT:
1463
op= &select_max_min_finder_subselect::cmp_int;
1378
op= &select_max_min_finder_subselect::cmp_int;
1465
1380
case STRING_RESULT:
1466
op= &select_max_min_finder_subselect::cmp_str;
1381
op= &select_max_min_finder_subselect::cmp_str;
1468
1383
case DECIMAL_RESULT:
1469
1384
op= &select_max_min_finder_subselect::cmp_decimal;
1471
1386
case ROW_RESULT:
1472
1387
// This case should never be choosen
1477
1392
cache->store(val_item);
1560
1475
void Session::end_statement()
1562
1477
/* Cleanup SQL processing state to reuse this statement in next query. */
1564
query_cache_key= ""; // reset the cache key
1565
resetResultsetMessage();
1568
1481
bool Session::copy_db_to(char **p_db, size_t *p_db_length)
1571
if (_schema and _schema->empty())
1573
my_message(ER_NO_DB_ERROR, ER(ER_NO_DB_ERROR), MYF(0));
1576
else if (not _schema)
1578
my_message(ER_NO_DB_ERROR, ER(ER_NO_DB_ERROR), MYF(0));
1583
*p_db= strmake(_schema->c_str(), _schema->size());
1584
*p_db_length= _schema->size();
1485
my_message(ER_NO_DB_ERROR, ER(ER_NO_DB_ERROR), MYF(0));
1488
*p_db= strmake(db.c_str(), db.length());
1489
*p_db_length= db.length();
1625
void Session::set_db(const std::string &new_db)
1529
bool Session::set_db(const std::string &new_db)
1627
1531
/* Do not reallocate memory if current chunk is big enough. */
1628
1532
if (new_db.length())
1630
_schema.reset(new std::string(new_db));
1634
_schema.reset(new std::string(""));
1544
Check the killed state of a user thread
1545
@param session user thread
1546
@retval 0 the user thread is active
1547
@retval 1 the user thread has been killed
1549
int session_killed(const Session *session)
1551
return(session->killed);
1555
const struct charset_info_st *session_charset(Session *session)
1557
return(session->charset());
1640
1561
Mark transaction to rollback and mark error as fatal to a sub-statement.
1657
1578
plugin_sessionvar_cleanup(this);
1659
1580
/* If necessary, log any aborted or unauthorized connections */
1660
if (getKilled() || client->wasAborted())
1581
if (killed || client->wasAborted())
1662
1583
status_var.aborted_threads++;
1665
1586
if (client->wasAborted())
1667
if (not getKilled() && variables.log_warnings > 1)
1588
if (! killed && variables.log_warnings > 1)
1590
SecurityContext *sctx= &security_ctx;
1669
1592
errmsg_printf(ERRMSG_LVL_WARN, ER(ER_NEW_ABORTING_CONNECTION)
1671
, (_schema->empty() ? "unconnected" : _schema->c_str())
1672
, security_ctx->username().empty() == false ? security_ctx->username().c_str() : "unauthenticated"
1673
, security_ctx->address().c_str()
1594
, (db.empty() ? "unconnected" : db.c_str())
1595
, sctx->getUser().empty() == false ? sctx->getUser().c_str() : "unauthenticated"
1596
, sctx->getIp().c_str()
1674
1597
, (main_da.is_error() ? main_da.message() : ER(ER_UNKNOWN_ERROR)));
1678
1601
/* Close out our connection to the client */
1679
1602
if (should_lock)
1680
session::Cache::singleton().mutex().lock();
1682
setKilled(Session::KILL_CONNECTION);
1603
LOCK_thread_count.lock();
1604
killed= Session::KILL_CONNECTION;
1684
1605
if (client->isConnected())
1810
1728
user_var_entry *Session::getVariable(LEX_STRING &name, bool create_if_not_exists)
1812
return getVariable(std::string(name.str, name.length), create_if_not_exists);
1815
user_var_entry *Session::getVariable(const std::string &name, bool create_if_not_exists)
1817
UserVarsRange ppp= user_vars.equal_range(name);
1730
user_var_entry *entry= NULL;
1731
UserVarsRange ppp= user_vars.equal_range(std::string(name.str, name.length));
1819
1733
for (UserVars::iterator iter= ppp.first;
1820
iter != ppp.second; ++iter)
1734
iter != ppp.second; ++iter)
1822
return (*iter).second;
1736
entry= (*iter).second;
1825
if (not create_if_not_exists)
1828
user_var_entry *entry= NULL;
1829
entry= new (nothrow) user_var_entry(name.c_str(), query_id);
1834
std::pair<UserVars::iterator, bool> returnable= user_vars.insert(make_pair(name, entry));
1836
if (not returnable.second)
1739
if ((entry == NULL) && create_if_not_exists)
1741
entry= new (nothrow) user_var_entry(name.str, query_id);
1746
std::pair<UserVars::iterator, bool> returnable= user_vars.insert(make_pair(std::string(name.str, name.length), entry));
1748
if (not returnable.second)
1844
void Session::setVariable(const std::string &name, const std::string &value)
1846
user_var_entry *updateable_var= getVariable(name.c_str(), true);
1848
updateable_var->update_hash(false,
1849
(void*)value.c_str(),
1850
static_cast<uint32_t>(value.length()), STRING_RESULT,
1852
DERIVATION_IMPLICIT, false);
1855
void Open_tables_state::mark_temp_tables_as_free_for_reuse()
1758
void Session::mark_temp_tables_as_free_for_reuse()
1857
1760
for (Table *table= temporary_tables ; table ; table= table->getNext())
1859
if (table->query_id == getQueryId())
1762
if (table->query_id == query_id)
1861
1764
table->query_id= 0;
1862
1765
table->cursor->ha_reset();
1920
1824
handled either before writing a query log event (inside
1921
1825
binlog_query()) or when preparing a pending event.
1827
mysql_unlock_tables(this, lock);
1927
Note that we need to hold table::Cache::singleton().mutex() while changing the
1831
Note that we need to hold LOCK_open while changing the
1928
1832
open_tables list. Another thread may work on it.
1929
(See: table::Cache::singleton().removeTable(), mysql_wait_completed_table())
1833
(See: remove_table_from_cache(), mysql_wait_completed_table())
1930
1834
Closing a MERGE child before the parent would be fatal if the
1931
1835
other thread tries to abort the MERGE lock in between.
1965
1869
close_tables_for_reopen(&tables);
1967
1871
if ((mysql_handle_derived(lex, &mysql_derived_prepare) ||
1872
(fill_derived_tables() &&
1969
1873
mysql_handle_derived(lex, &mysql_derived_filling))))
1879
bool Session::openTables(TableList *tables, uint32_t flags)
1882
bool ret= fill_derived_tables();
1883
assert(ret == false);
1884
if (open_tables_from_list(&tables, &counter, flags) ||
1885
mysql_handle_derived(lex, &mysql_derived_prepare))
1976
1893
@note "best_effort" is used in cases were if a failure occurred on this
1977
1894
operation it would not be surprising because we are only removing because there
1978
1895
might be an issue (lame engines).
1981
bool Open_tables_state::rm_temporary_table(const TableIdentifier &identifier, bool best_effort)
1898
bool Session::rm_temporary_table(TableIdentifier &identifier, bool best_effort)
1983
if (plugin::StorageEngine::dropTable(*static_cast<Session *>(this), identifier))
1900
if (plugin::StorageEngine::dropTable(*this, identifier))
1985
1902
if (not best_effort)
1988
identifier.getSQLPath(path);
1989
1904
errmsg_printf(ERRMSG_LVL_WARN, _("Could not remove temporary table: '%s', error: %d"),
1990
path.c_str(), errno);
1905
identifier.getSQLPath().c_str(), errno);
1999
bool Open_tables_state::rm_temporary_table(plugin::StorageEngine *base, const TableIdentifier &identifier)
1914
bool Session::rm_temporary_table(plugin::StorageEngine *base, TableIdentifier &identifier)
2003
if (plugin::StorageEngine::dropTable(*static_cast<Session *>(this), *base, identifier))
1918
if (plugin::StorageEngine::dropTable(*this, *base, identifier))
2006
identifier.getSQLPath(path);
2007
1920
errmsg_printf(ERRMSG_LVL_WARN, _("Could not remove temporary table: '%s', error: %d"),
2008
path.c_str(), errno);
1921
identifier.getSQLPath().c_str(), errno);
2041
1954
cerr << "\t\t Proto " << proto->schema() << " " << proto->name() << "\n";
2045
1957
cerr << "\tTabl;e Name " << table->getShare()->getSchemaName() << "." << table->getShare()->getTableName() << " : " << answer << "\n";
2050
bool Session::TableMessages::storeTableMessage(const TableIdentifier &identifier, message::Table &table_message)
1961
bool Session::storeTableMessage(const TableIdentifier &identifier, message::Table &table_message)
2052
1963
table_message_cache.insert(make_pair(identifier.getPath(), table_message));
2057
bool Session::TableMessages::removeTableMessage(const TableIdentifier &identifier)
1968
bool Session::removeTableMessage(const TableIdentifier &identifier)
2059
1970
TableMessageCache::iterator iter;
2118
table::Instance *Session::getInstanceTable()
2120
temporary_shares.push_back(new table::Instance()); // This will not go into the tableshare cache, so no key is used.
2122
table::Instance *tmp_share= temporary_shares.back();
2131
Create a reduced Table object with properly set up Field list from a
2132
list of field definitions.
2134
The created table doesn't have a table Cursor associated with
2135
it, has no keys, no group/distinct, no copy_funcs array.
2136
The sole purpose of this Table object is to use the power of Field
2137
class to read/write data to/from table->getInsertRecord(). Then one can store
2138
the record in any container (RB tree, hash, etc).
2139
The table is created in Session mem_root, so are the table's fields.
2140
Consequently, if you don't BLOB fields, you don't need to free it.
2142
@param session connection handle
2143
@param field_list list of column definitions
2146
0 if out of memory, Table object in case of success
2148
table::Instance *Session::getInstanceTable(List<CreateField> &field_list)
2150
temporary_shares.push_back(new table::Instance(this, field_list)); // This will not go into the tableshare cache, so no key is used.
2152
table::Instance *tmp_share= temporary_shares.back();
2161
static const std::string NONE= "NONE";
2162
static const std::string GOT_GLOBAL_READ_LOCK= "HAS GLOBAL READ LOCK";
2163
static const std::string MADE_GLOBAL_READ_LOCK_BLOCK_COMMIT= "HAS GLOBAL READ LOCK WITH BLOCKING COMMIT";
2165
const std::string &type(drizzled::Session::global_read_lock_t type)
2171
case Session::GOT_GLOBAL_READ_LOCK:
2172
return GOT_GLOBAL_READ_LOCK;
2173
case Session::MADE_GLOBAL_READ_LOCK_BLOCK_COMMIT:
2174
return MADE_GLOBAL_READ_LOCK_BLOCK_COMMIT;
2178
size_t max_string_length(drizzled::Session::global_read_lock_t)
2180
return MADE_GLOBAL_READ_LOCK_BLOCK_COMMIT.size();
2183
} /* namespace display */
2029
TableShareInstance *Session::getTemporaryShare(TableIdentifier::Type type_arg)
2031
temporary_shares.push_back(new TableShareInstance(type_arg)); // This will not go into the tableshare cache, so no key is used.
2033
TableShareInstance *tmp_share= temporary_shares.back();
2185
2040
} /* namespace drizzled */