MySQL 8.0.31
Source Code Documentation
table_file_summary_by_event_name.h
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22
23#ifndef TABLE_FILE_SUMMARY_H
24#define TABLE_FILE_SUMMARY_H
25
26/**
27 @file storage/perfschema/table_file_summary_by_event_name.h
28 Table FILE_SUMMARY_BY_EVENT_NAME (declarations).
29*/
30
31#include <sys/types.h>
32
33#include "my_base.h"
36
37class Field;
38class Plugin_table;
39struct PFS_file_class;
40struct TABLE;
41struct THR_LOCK;
42
43/**
44 @addtogroup performance_schema_tables
45 @{
46*/
47
48/** A row of PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME. */
50 /** Column EVENT_NAME. */
52
53 /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER and NUMBER_OF_BYTES
54 for READ, WRITE and MISC operation types.
55 */
57};
58
60 public:
62 : PFS_engine_index(&m_key), m_key("EVENT_NAME") {}
63
65
66 bool match(const PFS_file_class *pfs);
67
68 private:
70};
71
72/** Table PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME. */
74 public:
75 /** Table share */
78 static int delete_all_rows();
79 static ha_rows get_row_count();
80
81 void reset_position(void) override;
82
83 int rnd_next() override;
84 int rnd_pos(const void *pos) override;
85
86 int index_init(uint idx, bool sorted) override;
87 int index_next() override;
88
89 private:
90 int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
91 bool read_all) override;
92
94
95 public:
97
98 private:
99 int make_row(PFS_file_class *klass);
100
101 /** Table share lock. */
103 /** Table definition. */
105
106 /** Current row. */
108 /** Current position. */
110 /** Next position. */
112
113 protected:
115};
116
117/** @} */
118#endif
Definition: field.h:574
Definition: pfs_engine_table.h:299
An abstract PERFORMANCE_SCHEMA table.
Definition: pfs_engine_table.h:69
Definition: table_file_summary_by_event_name.h:59
PFS_key_event_name m_key
Definition: table_file_summary_by_event_name.h:69
~PFS_index_file_summary_by_event_name() override=default
PFS_index_file_summary_by_event_name()
Definition: table_file_summary_by_event_name.h:61
bool match(const PFS_file_class *pfs)
Definition: table_file_summary_by_event_name.cc:96
Definition: table_helper.h:1431
Class to hold information regarding a table to be created on behalf of a plugin.
Definition: plugin_table.h:39
Table PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME.
Definition: table_file_summary_by_event_name.h:73
static PFS_engine_table * create(PFS_engine_table_share *)
Definition: table_file_summary_by_event_name.cc:105
static PFS_engine_table_share m_share
Table share.
Definition: table_file_summary_by_event_name.h:76
table_file_summary_by_event_name()
Definition: table_file_summary_by_event_name.cc:120
static ha_rows get_row_count()
Definition: table_file_summary_by_event_name.cc:116
static THR_LOCK m_table_lock
Table share lock.
Definition: table_file_summary_by_event_name.h:102
int rnd_pos(const void *pos) override
Fetch a row by position.
Definition: table_file_summary_by_event_name.cc:144
PFS_index_file_summary_by_event_name * m_opened_index
Definition: table_file_summary_by_event_name.h:114
int index_next() override
Find key in index, read record.
Definition: table_file_summary_by_event_name.cc:168
PFS_simple_index m_next_pos
Next position.
Definition: table_file_summary_by_event_name.h:111
row_file_summary_by_event_name m_row
Current row.
Definition: table_file_summary_by_event_name.h:107
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:206
void reset_position(void) override
Reset the cursor position to the beginning of the table.
Definition: table_file_summary_by_event_name.cc:125
int index_init(uint idx, bool sorted) override
Definition: table_file_summary_by_event_name.cc:158
static Plugin_table m_table_def
Table definition.
Definition: table_file_summary_by_event_name.h:104
PFS_simple_index m_pos
Current position.
Definition: table_file_summary_by_event_name.h:109
~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:130
int make_row(PFS_file_class *klass)
Build a row.
Definition: table_file_summary_by_event_name.cc:194
static int delete_all_rows()
Definition: table_file_summary_by_event_name.cc:110
char * pos
Definition: do_ctype.cc:76
This file includes constants used by all storage engines.
my_off_t ha_rows
Definition: my_base.h:1139
Definition: buf0block_hint.cc:29
Performance schema tables (declarations).
static const LEX_CSTRING pfs
Definition: sql_show_processlist.cc:65
A PERFORMANCE_SCHEMA table share.
Definition: pfs_engine_table.h:357
Row fragment for column EVENT_NAME.
Definition: table_helper.h:581
Instrumentation metadata for a file.
Definition: pfs_instr_class.h:535
Row fragment for file I/O statistics columns.
Definition: table_helper.h:1040
Position of a cursor, for simple iterations.
Definition: pfs_engine_table.h:558
Definition: table.h:1396
Definition: thr_lock.h:138
A row of PERFORMANCE_SCHEMA.FILE_SUMMARY_BY_EVENT_NAME.
Definition: table_file_summary_by_event_name.h:49
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:56
PFS_event_name_row m_event_name
Column EVENT_NAME.
Definition: table_file_summary_by_event_name.h:51
Helpers to implement a performance schema table.
unsigned int uint
Definition: uca-dump.cc:29