1 | /* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. |
2 | |
3 | This program is free software; you can redistribute it and/or modify |
4 | it under the terms of the GNU General Public License as published by |
5 | the Free Software Foundation; version 2 of the License. |
6 | |
7 | This program is distributed in the hope that it will be useful, |
8 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
9 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
10 | GNU General Public License for more details. |
11 | |
12 | You should have received a copy of the GNU General Public License |
13 | along with this program; if not, write to the Free Software Foundation, |
14 | 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ |
15 | |
16 | #ifndef TABLE_SETUP_ACTORS_H |
17 | #define TABLE_SETUP_ACTORS_H |
18 | |
19 | /** |
20 | @file storage/perfschema/table_setup_actors.h |
21 | Table SETUP_ACTORS (declarations). |
22 | */ |
23 | |
24 | #include "pfs_engine_table.h" |
25 | |
26 | struct PFS_setup_actor; |
27 | |
28 | /** |
29 | @addtogroup Performance_schema_tables |
30 | @{ |
31 | */ |
32 | |
33 | /** A row of PERFORMANCE_SCHEMA.SETUP_ACTORS. */ |
34 | struct row_setup_actors |
35 | { |
36 | /** Column HOST. */ |
37 | char m_hostname[HOSTNAME_LENGTH]; |
38 | /** Length in bytes of @c m_hostname. */ |
39 | uint m_hostname_length; |
40 | /** Column USER. */ |
41 | char m_username[USERNAME_LENGTH]; |
42 | /** Length in bytes of @c m_username. */ |
43 | uint m_username_length; |
44 | /** Column ROLE. */ |
45 | char m_rolename[16]; |
46 | /** Length in bytes of @c m_rolename. */ |
47 | uint m_rolename_length; |
48 | }; |
49 | |
50 | /** Table PERFORMANCE_SCHEMA.SETUP_ACTORS. */ |
51 | class table_setup_actors : public PFS_engine_table |
52 | { |
53 | public: |
54 | /** Table share. */ |
55 | static PFS_engine_table_share m_share; |
56 | /** Table builder. */ |
57 | static PFS_engine_table* create(); |
58 | static int write_row(TABLE *table, unsigned char *buf, Field **fields); |
59 | static int delete_all_rows(); |
60 | static ha_rows get_row_count(); |
61 | |
62 | virtual int rnd_next(); |
63 | virtual int rnd_pos(const void *pos); |
64 | virtual void reset_position(void); |
65 | |
66 | protected: |
67 | virtual int read_row_values(TABLE *table, |
68 | unsigned char *buf, |
69 | Field **fields, |
70 | bool read_all); |
71 | |
72 | virtual int update_row_values(TABLE *table, |
73 | const unsigned char *old_buf, |
74 | const unsigned char *new_buf, |
75 | Field **fields); |
76 | |
77 | virtual int delete_row_values(TABLE *table, |
78 | const unsigned char *buf, |
79 | Field **fields); |
80 | |
81 | table_setup_actors(); |
82 | |
83 | public: |
84 | ~table_setup_actors() |
85 | {} |
86 | |
87 | private: |
88 | void make_row(PFS_setup_actor *actor); |
89 | |
90 | /** Table share lock. */ |
91 | static THR_LOCK m_table_lock; |
92 | |
93 | /** Current row. */ |
94 | row_setup_actors m_row; |
95 | /** True if the current row exists. */ |
96 | bool m_row_exists; |
97 | /** Current position. */ |
98 | PFS_simple_index m_pos; |
99 | /** Next position. */ |
100 | PFS_simple_index m_next_pos; |
101 | }; |
102 | |
103 | /** @} */ |
104 | #endif |
105 | |