MySQL 8.0.29
Source Code Documentation
table_esgs_by_host_by_event_name.h
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23
24#ifndef TABLE_ESGS_BY_HOST_BY_EVENT_NAME_H
25#define TABLE_ESGS_BY_HOST_BY_EVENT_NAME_H
26
27/**
28 @file storage/perfschema/table_esgs_by_host_by_event_name.h
29 Table EVENTS_STAGES_SUMMARY_BY_HOST_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_host;
41struct PFS_instr_class;
42struct PFS_stage_class;
43struct TABLE;
44struct THR_LOCK;
45
46/**
47 @addtogroup performance_schema_tables
48 @{
49*/
50
52 public:
55 m_key_1("HOST"),
56 m_key_2("EVENT_NAME") {}
57
59
60 virtual bool match(PFS_host *pfs);
61 virtual bool match(PFS_instr_class *instr_class);
62
63 private:
66};
67
68/**
69 A row of table
70 PERFORMANCE_SCHEMA.EVENTS_STAGES_SUMMARY_BY_HOST_BY_EVENT_NAME.
71*/
73 /** Column HOST. */
75 /** Column EVENT_NAME. */
77 /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */
79};
80
81/**
82 Position of a cursor on
83 PERFORMANCE_SCHEMA.EVENTS_STAGES_SUMMARY_BY_HOST_BY_EVENT_NAME.
84 Index 1 on host (0 based)
85 Index 2 on stage class (1 based).
86*/
89
90 inline void reset(void) {
91 m_index_1 = 0;
92 m_index_2 = 1;
93 }
94
95 inline void next_host(void) {
96 m_index_1++;
97 m_index_2 = 1;
98 }
99};
100
101/** Table PERFORMANCE_SCHEMA.EVENTS_STAGES_SUMMARY_BY_HOST_BY_EVENT_NAME. */
103 public:
104 /** Table share */
107 static int delete_all_rows();
108 static ha_rows get_row_count();
109
110 void reset_position(void) override;
111
112 int rnd_init(bool scan) override;
113 int rnd_next() override;
114 int rnd_pos(const void *pos) override;
115
116 int index_init(uint idx, bool sorted) override;
117 int index_next() override;
118
119 protected:
120 int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
121 bool read_all) override;
122
124
125 public:
127
128 protected:
130
131 private:
132 /** Table share lock. */
134 /** Table definition. */
136
137 /** Current row. */
139 /** Current position. */
141 /** Next position. */
143
145};
146
147/** @} */
148#endif
Definition: field.h:573
Definition: pfs_engine_table.h:299
An abstract PERFORMANCE_SCHEMA table.
Definition: pfs_engine_table.h:69
Definition: table_esgs_by_host_by_event_name.h:51
~PFS_index_esgs_by_host_by_event_name() override=default
virtual bool match(PFS_host *pfs)
Definition: table_esgs_by_host_by_event_name.cc:82
PFS_index_esgs_by_host_by_event_name()
Definition: table_esgs_by_host_by_event_name.h:53
PFS_key_event_name m_key_2
Definition: table_esgs_by_host_by_event_name.h:65
PFS_key_host m_key_1
Definition: table_esgs_by_host_by_event_name.h:64
Definition: table_helper.h:1431
Definition: table_helper.h:1458
Class to hold information regarding a table to be created on behalf of a plugin.
Definition: plugin_table.h:39
Table PERFORMANCE_SCHEMA.EVENTS_STAGES_SUMMARY_BY_HOST_BY_EVENT_NAME.
Definition: table_esgs_by_host_by_event_name.h:102
pos_esgs_by_host_by_event_name m_next_pos
Next position.
Definition: table_esgs_by_host_by_event_name.h:142
static Plugin_table m_table_def
Table definition.
Definition: table_esgs_by_host_by_event_name.h:135
int rnd_init(bool scan) override
Initialize table scan.
Definition: table_esgs_by_host_by_event_name.cc:126
static PFS_engine_table * create(PFS_engine_table_share *)
Definition: table_esgs_by_host_by_event_name.cc:100
static int delete_all_rows()
Definition: table_esgs_by_host_by_event_name.cc:105
PFS_index_esgs_by_host_by_event_name * m_opened_index
Definition: table_esgs_by_host_by_event_name.h:144
static PFS_engine_table_share m_share
Table share.
Definition: table_esgs_by_host_by_event_name.h:105
row_esgs_by_host_by_event_name m_row
Current row.
Definition: table_esgs_by_host_by_event_name.h:138
int read_row_values(TABLE *table, unsigned char *buf, Field **fields, bool read_all) override
Read the current row values.
Definition: table_esgs_by_host_by_event_name.cc:229
table_esgs_by_host_by_event_name()
Definition: table_esgs_by_host_by_event_name.cc:116
int rnd_pos(const void *pos) override
Fetch a row by position.
Definition: table_esgs_by_host_by_event_name.cc:147
int rnd_next() override
Fetch the next row in this cursor.
Definition: table_esgs_by_host_by_event_name.cc:128
int index_next() override
Find key in index, read record.
Definition: table_esgs_by_host_by_event_name.cc:174
static ha_rows get_row_count()
Definition: table_esgs_by_host_by_event_name.cc:112
void reset_position(void) override
Reset the cursor position to the beginning of the table.
Definition: table_esgs_by_host_by_event_name.cc:121
~table_esgs_by_host_by_event_name() override=default
int index_init(uint idx, bool sorted) override
Definition: table_esgs_by_host_by_event_name.cc:164
int make_row(PFS_host *host, PFS_stage_class *klass)
Definition: table_esgs_by_host_by_event_name.cc:202
static THR_LOCK m_table_lock
Table share lock.
Definition: table_esgs_by_host_by_event_name.h:133
pos_esgs_by_host_by_event_name m_pos
Current position.
Definition: table_esgs_by_host_by_event_name.h:140
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
const char * host
Definition: mysqladmin.cc:58
Definition: buf0block_hint.cc:29
Performance schema tables (declarations).
static const LEX_CSTRING pfs
Definition: sql_show_processlist.cc:65
Position of a double cursor, for iterations using 2 nested loops.
Definition: pfs_engine_table.h:593
uint m_index_1
Outer index.
Definition: pfs_engine_table.h:595
uint m_index_2
Current index within index_1.
Definition: pfs_engine_table.h:597
A PERFORMANCE_SCHEMA table share.
Definition: pfs_engine_table.h:357
Row fragment for column EVENT_NAME.
Definition: table_helper.h:596
Row fragment for column HOST.
Definition: table_helper.h:541
Per host statistics.
Definition: pfs_host.h:62
Information for all instrumentation.
Definition: pfs_instr_class.h:204
Instrumentation metadata for a stage.
Definition: pfs_instr_class.h:526
Row fragment for stage statistics columns.
Definition: table_helper.h:847
Definition: table.h:1394
Definition: thr_lock.h:138
Position of a cursor on PERFORMANCE_SCHEMA.EVENTS_STAGES_SUMMARY_BY_HOST_BY_EVENT_NAME.
Definition: table_esgs_by_host_by_event_name.h:87
pos_esgs_by_host_by_event_name()
Definition: table_esgs_by_host_by_event_name.h:88
void reset(void)
Definition: table_esgs_by_host_by_event_name.h:90
void next_host(void)
Definition: table_esgs_by_host_by_event_name.h:95
A row of table PERFORMANCE_SCHEMA.EVENTS_STAGES_SUMMARY_BY_HOST_BY_EVENT_NAME.
Definition: table_esgs_by_host_by_event_name.h:72
PFS_event_name_row m_event_name
Column EVENT_NAME.
Definition: table_esgs_by_host_by_event_name.h:76
PFS_stage_stat_row m_stat
Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT.
Definition: table_esgs_by_host_by_event_name.h:78
PFS_host_row m_host
Column HOST.
Definition: table_esgs_by_host_by_event_name.h:74
Helpers to implement a performance schema table.
unsigned int uint
Definition: uca-dump.cc:29