← Back to branch summary

~drizzle-trunk/drizzle/development

« back to all changes in this revision

Viewing changes to drizzled/lock.h

  • Committer: Brian Aker
  • Date: 2009-06-05 05:40:36 UTC
  • mfrom: (1046.1.15 merge)
  • Revision ID: brian@gaz-20090605054036-1024tm3gv0oloipw
Merge of Brian

Show diffs side-by-side

added added

removed removed

Lines of Context:
drizzled/lock.h
 
1
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 
2
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 
3
 *
 
4
 *  Copyright (C) 2008 Sun Microsystems
 
5
 *
 
6
 *  This program is free software; you can redistribute it and/or modify
 
7
 *  it under the terms of the GNU General Public License as published by
 
8
 *  the Free Software Foundation; version 2 of the License.
 
9
 *
 
10
 *  This program is distributed in the hope that it will be useful,
 
11
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 
12
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
13
 *  GNU General Public License for more details.
 
14
 *
 
15
 *  You should have received a copy of the GNU General Public License
 
16
 *  along with this program; if not, write to the Free Software
 
17
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
18
 */
 
19
 
 
20
#ifndef DRIZZLED_LOCK_H
 
21
#define DRIZZLED_LOCK_H
 
22
 
 
23
#include <mysys/definitions.h>
 
24
 
 
25
class Session;
 
26
class Table;
 
27
class TableList;
 
28
typedef struct drizzled_lock_st DRIZZLE_LOCK;
 
29
 
 
30
DRIZZLE_LOCK *mysql_lock_tables(Session *session, Table **table, uint32_t count,
 
31
                                uint32_t flags, bool *need_reopen);
 
32
/* mysql_lock_tables() and open_table() flags bits */
 
33
#define DRIZZLE_LOCK_IGNORE_GLOBAL_READ_LOCK      0x0001
 
34
#define DRIZZLE_LOCK_IGNORE_FLUSH                 0x0002
 
35
#define DRIZZLE_LOCK_NOTIFY_IF_NEED_REOPEN        0x0004
 
36
#define DRIZZLE_OPEN_TEMPORARY_ONLY               0x0008
 
37
 
 
38
void mysql_unlock_tables(Session *session, DRIZZLE_LOCK *sql_lock);
 
39
void mysql_unlock_read_tables(Session *session, DRIZZLE_LOCK *sql_lock);
 
40
void mysql_unlock_some_tables(Session *session, Table **table,uint32_t count);
 
41
void mysql_lock_remove(Session *session, DRIZZLE_LOCK *locked,Table *table,
 
42
                       bool always_unlock);
 
43
void mysql_lock_abort(Session *session, Table *table, bool upgrade_lock);
 
44
bool mysql_lock_abort_for_thread(Session *session, Table *table);
 
45
DRIZZLE_LOCK *mysql_lock_merge(DRIZZLE_LOCK *a,DRIZZLE_LOCK *b);
 
46
TableList *mysql_lock_have_duplicate(Session *session, TableList *needle,
 
47
                                      TableList *haystack);
 
48
bool lock_global_read_lock(Session *session);
 
49
void unlock_global_read_lock(Session *session);
 
50
bool wait_if_global_read_lock(Session *session, bool abort_on_refresh,
 
51
                              bool is_not_commit);
 
52
void start_waiting_global_read_lock(Session *session);
 
53
bool make_global_read_lock_block_commit(Session *session);
 
54
bool set_protect_against_global_read_lock(void);
 
55
void unset_protect_against_global_read_lock(void);
 
56
void broadcast_refresh(void);
 
57
int try_transactional_lock(Session *session, TableList *table_list);
 
58
int check_transactional_lock(Session *session, TableList *table_list);
 
59
int set_handler_table_locks(Session *session, TableList *table_list,
 
60
                            bool transactional);
 
61
 
 
62
/* Lock based on name */
 
63
int lock_and_wait_for_table_name(Session *session, TableList *table_list);
 
64
int lock_table_name(Session *session, TableList *table_list, bool check_in_use);
 
65
void unlock_table_name(TableList *table_list);
 
66
bool wait_for_locked_table_names(Session *session, TableList *table_list);
 
67
bool lock_table_names(Session *session, TableList *table_list);
 
68
void unlock_table_names(TableList *table_list, TableList *last_table);
 
69
bool lock_table_names_exclusively(Session *session, TableList *table_list);
 
70
bool is_table_name_exclusively_locked_by_this_thread(Session *session,
 
71
                                                     TableList *table_list);
 
72
bool is_table_name_exclusively_locked_by_this_thread(Session *session,
 
73
                                                     unsigned char *key,
 
74
                                                     int key_length);
 
75
 
 
76
#endif /* DRIZZLED_LOCK_H */