MySQL 8.0.31
Source Code Documentation
table_ews_by_host_by_event_name.h
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23
24#ifndef TABLE_EWS_BY_HOST_BY_EVENT_NAME_H
25#define TABLE_EWS_BY_HOST_BY_EVENT_NAME_H
26
27/**
28 @file storage/perfschema/table_ews_by_host_by_event_name.h
29 Table EVENTS_WAITS_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 TABLE;
43struct THR_LOCK;
44
45/**
46 @addtogroup performance_schema_tables
47 @{
48*/
49
51 public:
54 m_key_1("HOST"),
55 m_key_2("EVENT_NAME") {}
56
58
59 virtual bool match(PFS_host *pfs);
60 virtual bool match_view(uint view);
61 virtual bool match(PFS_instr_class *instr_class);
62
63 private:
66};
67
68/**
69 A row of table
70 PERFORMANCE_SCHEMA.EVENTS_WAITS_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_WAITS_SUMMARY_BY_HOST_BY_EVENT_NAME.
84 Index 1 on host (0 based)
85 Index 2 on instrument view
86 Index 3 on instrument class (1 based)
87*/
91
92 inline void reset(void) {
93 m_index_1 = 0;
95 m_index_3 = 1;
96 }
97
98 inline void next_host(void) {
99 m_index_1++;
101 m_index_3 = 1;
102 }
103
104 inline bool has_more_view(void) { return (m_index_2 <= LAST_VIEW); }
105
106 inline void next_view(void) {
107 m_index_2++;
108 m_index_3 = 1;
109 }
110};
111
112/** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_HOST_BY_EVENT_NAME. */
114 public:
115 /** Table share */
118 static int delete_all_rows();
119 static ha_rows get_row_count();
120
121 void reset_position(void) override;
122
123 int rnd_next() override;
124 int rnd_pos(const void *pos) override;
125
126 int index_init(uint idx, bool sorted) override;
127 int index_next() override;
128
129 protected:
130 int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
131 bool read_all) override;
132
134
135 public:
137
138 protected:
140
141 private:
142 /** Table share lock. */
144 /** Table definition. */
146
147 /** Current row. */
149 /** Current position. */
151 /** Next position. */
153
155};
156
157/** @} */
158#endif
Definition: field.h:574
Definition: pfs_engine_table.h:299
An abstract PERFORMANCE_SCHEMA table.
Definition: pfs_engine_table.h:69
Definition: table_ews_by_host_by_event_name.h:50
PFS_key_host m_key_1
Definition: table_ews_by_host_by_event_name.h:64
virtual bool match(PFS_host *pfs)
Definition: table_ews_by_host_by_event_name.cc:82
~PFS_index_ews_by_host_by_event_name() override=default
virtual bool match_view(uint view)
Definition: table_ews_by_host_by_event_name.cc:91
PFS_index_ews_by_host_by_event_name()
Definition: table_ews_by_host_by_event_name.h:52
PFS_key_event_name m_key_2
Definition: table_ews_by_host_by_event_name.h:65
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_WAITS_SUMMARY_BY_HOST_BY_EVENT_NAME.
Definition: table_ews_by_host_by_event_name.h:113
static ha_rows get_row_count()
Definition: table_ews_by_host_by_event_name.cc:117
~table_ews_by_host_by_event_name() override=default
static THR_LOCK m_table_lock
Table share lock.
Definition: table_ews_by_host_by_event_name.h:143
static int delete_all_rows()
Definition: table_ews_by_host_by_event_name.cc:110
pos_ews_by_host_by_event_name m_next_pos
Next position.
Definition: table_ews_by_host_by_event_name.h:152
static PFS_engine_table_share m_share
Table share.
Definition: table_ews_by_host_by_event_name.h:116
table_ews_by_host_by_event_name()
Definition: table_ews_by_host_by_event_name.cc:121
pos_ews_by_host_by_event_name m_pos
Current position.
Definition: table_ews_by_host_by_event_name.h:150
int index_next() override
Find key in index, read record.
Definition: table_ews_by_host_by_event_name.cc:242
static PFS_engine_table * create(PFS_engine_table_share *)
Definition: table_ews_by_host_by_event_name.cc:105
row_ews_by_host_by_event_name m_row
Current row.
Definition: table_ews_by_host_by_event_name.h:148
static Plugin_table m_table_def
Table definition.
Definition: table_ews_by_host_by_event_name.h:145
PFS_index_ews_by_host_by_event_name * m_opened_index
Definition: table_ews_by_host_by_event_name.h:154
void reset_position(void) override
Reset the cursor position to the beginning of the table.
Definition: table_ews_by_host_by_event_name.cc:127
int read_row_values(TABLE *table, unsigned char *buf, Field **fields, bool read_all) override
Read the current row values.
Definition: table_ews_by_host_by_event_name.cc:338
int rnd_next() override
Fetch the next row in this cursor.
Definition: table_ews_by_host_by_event_name.cc:132
int rnd_pos(const void *pos) override
Fetch a row by position.
Definition: table_ews_by_host_by_event_name.cc:183
int make_row(PFS_host *host, PFS_instr_class *klass)
Definition: table_ews_by_host_by_event_name.cc:306
int index_init(uint idx, bool sorted) override
Definition: table_ews_by_host_by_event_name.cc:232
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
A PERFORMANCE_SCHEMA table share.
Definition: pfs_engine_table.h:357
Row fragment for column EVENT_NAME.
Definition: table_helper.h:581
Row fragment for column HOST.
Definition: table_helper.h:526
Per host statistics.
Definition: pfs_host.h:63
Information for all instrumentation.
Definition: pfs_instr_class.h:204
Name space, internal views used within table setup_instruments.
Definition: table_helper.h:488
static const uint LAST_VIEW
Definition: table_helper.h:500
static const uint FIRST_VIEW
Definition: table_helper.h:491
Row fragment for single statistics columns (COUNT, SUM, MIN, AVG, MAX)
Definition: table_helper.h:660
Position of a triple cursor, for iterations using 3 nested loops.
Definition: pfs_engine_table.h:635
uint m_index_3
Current index within index_2.
Definition: pfs_engine_table.h:641
uint m_index_2
Current index within index_1.
Definition: pfs_engine_table.h:639
uint m_index_1
Outer index.
Definition: pfs_engine_table.h:637
Definition: table.h:1396
Definition: thr_lock.h:138
Position of a cursor on PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_HOST_BY_EVENT_NAME.
Definition: table_ews_by_host_by_event_name.h:89
bool has_more_view(void)
Definition: table_ews_by_host_by_event_name.h:104
void next_view(void)
Definition: table_ews_by_host_by_event_name.h:106
void next_host(void)
Definition: table_ews_by_host_by_event_name.h:98
void reset(void)
Definition: table_ews_by_host_by_event_name.h:92
pos_ews_by_host_by_event_name()
Definition: table_ews_by_host_by_event_name.h:90
A row of table PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_HOST_BY_EVENT_NAME.
Definition: table_ews_by_host_by_event_name.h:72
PFS_stat_row m_stat
Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT.
Definition: table_ews_by_host_by_event_name.h:78
PFS_event_name_row m_event_name
Column EVENT_NAME.
Definition: table_ews_by_host_by_event_name.h:76
PFS_host_row m_host
Column HOST.
Definition: table_ews_by_host_by_event_name.h:74
Helpers to implement a performance schema table.
unsigned int uint
Definition: uca-dump.cc:29