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
105
106
107
108
109
110
111
112
113
|
/* Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
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; version 2 of the License.
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,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef TABLE_THREADS_H
#define TABLE_THREADS_H
#include "pfs_column_types.h"
#include "cursor_by_thread.h"
struct PFS_thread;
/**
\addtogroup Performance_schema_tables
@{
*/
/**
A row of PERFORMANCE_SCHEMA.THREADS.
*/
struct row_threads
{
/** Column THREAD_ID. */
ulonglong m_thread_internal_id;
/** Column PROCESSLIST_ID. */
ulonglong m_processlist_id;
/** Column NAME. */
const char* m_name;
/** Length in bytes of @c m_name. */
uint m_name_length;
/** Column PROCESSLIST_USER. */
char m_username[USERNAME_LENGTH];
/** Length in bytes of @c m_username. */
uint m_username_length;
/** Column PROCESSLIST_HOST. */
char m_hostname[HOSTNAME_LENGTH];
/** Length in bytes of @c m_hostname. */
uint m_hostname_length;
/** Column PROCESSLIST_DB. */
char m_dbname[NAME_LEN];
/** Length in bytes of @c m_dbname. */
uint m_dbname_length;
/** Column PROCESSLIST_COMMAND. */
int m_command;
/** Column PROCESSLIST_TIME. */
time_t m_start_time;
/** Column PROCESSLIST_STATE. */
const char* m_processlist_state_ptr;
/** Length in bytes of @c m_processlist_state_ptr. */
uint m_processlist_state_length;
/** Column PROCESSLIST_INFO. */
const char* m_processlist_info_ptr;
/** Length in bytes of @c m_processlist_info_ptr. */
uint m_processlist_info_length;
/** Column INSTRUMENTED. */
bool *m_enabled_ptr;
/** Column PARENT_THREAD_ID. */
ulonglong m_parent_thread_internal_id;
};
/** Table PERFORMANCE_SCHEMA.THREADS. */
class table_threads : public cursor_by_thread
{
public:
/** Table share */
static PFS_engine_table_share m_share;
/** Table builder */
static PFS_engine_table* create();
protected:
virtual int read_row_values(TABLE *table,
unsigned char *buf,
Field **fields,
bool read_all);
virtual int update_row_values(TABLE *table,
const unsigned char *old_buf,
unsigned char *new_buf,
Field **fields);
protected:
table_threads();
public:
~table_threads()
{}
private:
virtual void make_row(PFS_thread *pfs);
/** Table share lock. */
static THR_LOCK m_table_lock;
/** Current row. */
row_threads m_row;
/** True if the current row exists. */
bool m_row_exists;
};
/** @} */
#endif
|
