1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Brian Aker
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PLUGIN_SCHEMA_ENGINE_SCHEMA_H
#define PLUGIN_SCHEMA_ENGINE_SCHEMA_H
#include <assert.h>
#include <drizzled/plugin/storage_engine.h>
#include <drizzled/data_home.h>
#include <drizzled/hash.h>
#include <pthread.h>
extern const drizzled::CHARSET_INFO *default_charset_info;
static const char *schema_exts[] = {
NULL
};
class Schema : public drizzled::plugin::StorageEngine
{
bool writeSchemaFile(const char *path, const drizzled::message::Schema &db);
bool readTableFile(const std::string &path, drizzled::message::Table &table_message);
bool readSchemaFile(const std::string &path, drizzled::message::Schema &schema);
void prime();
typedef drizzled::hash_map<std::string, drizzled::message::Schema> SchemaCache;
SchemaCache schema_cache;
bool schema_cache_filled;
pthread_rwlock_t schema_lock;
public:
Schema();
~Schema();
int doCreateTable(drizzled::Session *,
drizzled::Table&,
drizzled::TableIdentifier &,
drizzled::message::Table&)
{
return EPERM;
}
int doDropTable(drizzled::Session&, drizzled::TableIdentifier &identifier);
bool doCanCreateTable(const drizzled::TableIdentifier &identifier);
drizzled::Cursor *create(drizzled::TableShare &,
drizzled::memory::Root *)
{
return NULL;
}
void doGetSchemaNames(std::set<std::string>& set_of_names);
bool doGetSchemaDefinition(const std::string &schema_name, drizzled::message::Schema &proto);
bool doCreateSchema(const drizzled::message::Schema &schema_message);
bool doAlterSchema(const drizzled::message::Schema &schema_message);
bool doDropSchema(const std::string &schema_name);
int doGetTableDefinition(drizzled::Session& session,
drizzled::TableIdentifier &identifier,
drizzled::message::Table &table_proto);
void doGetTableNames(drizzled::CachedDirectory &directory,
std::string &db_name,
std::set<std::string> &set_of_names);
bool doDoesTableExist(drizzled::Session& session, drizzled::TableIdentifier &identifier);
int doRenameTable(drizzled::Session&, drizzled::TableIdentifier &, drizzled::TableIdentifier &)
{
return EPERM;
}
const char **bas_ext() const
{
return schema_exts;
}
};
#endif /* PLUGIN_SCHEMA_ENGINE_SCHEMA_H */
|