MySQL 8.4.0
Source Code Documentation
table_file_summary_by_event_name.h
Go to the documentation of this file.
1/* Copyright (c) 2008, 2024, Oracle and/or its affiliates.
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, version 2.0,
5 as published by the Free Software Foundation.
6
7 This program is designed to work with certain software (including
8 but not limited to OpenSSL) that is licensed under separate terms,
9 as designated in a particular file or component or in included license
10 documentation. The authors of MySQL hereby grant you an additional
11 permission to link the program and your derivative works with the
12 separately licensed software that they have either included with
13 the program or referenced in the documentation.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License, version 2.0, for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
23
24#ifndef TABLE_FILE_SUMMARY_H
25#define TABLE_FILE_SUMMARY_H
26
27/**
28 @file storage/perfschema/table_file_summary_by_event_name.h
29 Table FILE_SUMMARY_BY_EVENT_NAME (declarations).
30*/
31
32#include <sys/types.h>
33
34#include "my_base.h"
37
38class Field;
39class Plugin_table;
40struct PFS_file_class;
41struct TABLE;
42struct THR_LOCK;
43
44/**
45 @addtogroup performance_schema_tables
46 @{
47*/
48
49/** A row of PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME. */
51 /** Column EVENT_NAME. */
53
54 /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER and NUMBER_OF_BYTES
55 for READ, WRITE and MISC operation types.
56 */
58};
59
61 public:
63 : PFS_engine_index(&m_key), m_key("EVENT_NAME") {}
64
66
67 bool match(const PFS_file_class *pfs);
68
69 private:
71};
72
73/** Table PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME. */
75 public:
76 /** Table share */
79 static int delete_all_rows();
80 static ha_rows get_row_count();
81
82 void reset_position() override;
83
84 int rnd_next() override;
85 int rnd_pos(const void *pos) override;
86
87 int index_init(uint idx, bool sorted) override;
88 int index_next() override;
89
90 private:
91 int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
92 bool read_all) override;
93
95
96 public:
98
99 private:
100 int make_row(PFS_file_class *file_class);
101
102 /** Table share lock. */
104 /** Table definition. */
106
107 /** Current row. */
109 /** Current position. */
111 /** Next position. */
113
114 protected:
116};
117
118/** @} */
119#endif
Definition: field.h:575
Definition: pfs_engine_table.h:300
An abstract PERFORMANCE_SCHEMA table.
Definition: pfs_engine_table.h:70
Definition: table_file_summary_by_event_name.h:60
PFS_key_event_name m_key
Definition: table_file_summary_by_event_name.h:70
~PFS_index_file_summary_by_event_name() override=default
PFS_index_file_summary_by_event_name()
Definition: table_file_summary_by_event_name.h:62
bool match(const PFS_file_class *pfs)
Definition: table_file_summary_by_event_name.cc:97
Definition: table_helper.h:1459
Class to hold information regarding a table to be created on behalf of a plugin.
Definition: plugin_table.h:40
Table PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME.
Definition: table_file_summary_by_event_name.h:74
static PFS_engine_table * create(PFS_engine_table_share *)
Definition: table_file_summary_by_event_name.cc:106
static PFS_engine_table_share m_share
Table share.
Definition: table_file_summary_by_event_name.h:77
table_file_summary_by_event_name()
Definition: table_file_summary_by_event_name.cc:121
static ha_rows get_row_count()
Definition: table_file_summary_by_event_name.cc:117
static THR_LOCK m_table_lock
Table share lock.
Definition: table_file_summary_by_event_name.h:103
int make_row(PFS_file_class *file_class)
Build a row.
Definition: table_file_summary_by_event_name.cc:195
int rnd_pos(const void *pos) override
Fetch a row by position.
Definition: table_file_summary_by_event_name.cc:145
PFS_index_file_summary_by_event_name * m_opened_index
Definition: table_file_summary_by_event_name.h:115
void reset_position() override
Reset the cursor position to the beginning of the table.
Definition: table_file_summary_by_event_name.cc:126
int index_next() override
Find key in index, read record.
Definition: table_file_summary_by_event_name.cc:169
PFS_simple_index m_next_pos
Next position.
Definition: table_file_summary_by_event_name.h:112
row_file_summary_by_event_name m_row
Current row.
Definition: table_file_summary_by_event_name.h:108
int read_row_values(TABLE *table, unsigned char *buf, Field **fields, bool read_all) override
Read the current row values.
Definition: table_file_summary_by_event_name.cc:207
int index_init(uint idx, bool sorted) override
Definition: table_file_summary_by_event_name.cc:159
static Plugin_table m_table_def
Table definition.
Definition: table_file_summary_by_event_name.h:105
PFS_simple_index m_pos
Current position.
Definition: table_file_summary_by_event_name.h:110
~table_file_summary_by_event_name() override=default
int rnd_next() override
Fetch the next row in this cursor.
Definition: table_file_summary_by_event_name.cc:131
static int delete_all_rows()
Definition: table_file_summary_by_event_name.cc:111
This file includes constants used by all storage engines.
my_off_t ha_rows
Definition: my_base.h:1141
static PFS_engine_table_share_proxy table
Definition: pfs.cc:61
Definition: buf0block_hint.cc:30
Performance schema tables (declarations).
static const LEX_CSTRING pfs
Definition: sql_show_processlist.cc:66
A PERFORMANCE_SCHEMA table share.
Definition: pfs_engine_table.h:358
Row fragment for column EVENT_NAME.
Definition: table_helper.h:583
Instrumentation metadata for a file.
Definition: pfs_instr_class.h:589
Row fragment for file I/O statistics columns.
Definition: table_helper.h:1069
Position of a cursor, for simple iterations.
Definition: pfs_engine_table.h:558
Definition: table.h:1405
Definition: thr_lock.h:139
A row of PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME.
Definition: table_file_summary_by_event_name.h:50
PFS_file_io_stat_row m_io_stat
Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER and NUMBER_OF_BYTES for READ, WRITE and MISC operation type...
Definition: table_file_summary_by_event_name.h:57
PFS_event_name_row m_event_name
Column EVENT_NAME.
Definition: table_file_summary_by_event_name.h:52
Helpers to implement a performance schema table.