MySQL 8.0.29
Source Code Documentation
table_mems_by_account_by_event_name.h
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22
23#ifndef TABLE_MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME_H
24#define TABLE_MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME_H
25
26/**
27 @file storage/perfschema/table_mems_by_account_by_event_name.h
28 Table MEMORY_SUMMARY_BY_ACCOUNT_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_account;
40struct PFS_instr_class;
41struct PFS_memory_class;
42struct TABLE;
43struct THR_LOCK;
44
45/**
46 @addtogroup performance_schema_tables
47 @{
48*/
49
51 public:
54 m_key_1("USER"),
55 m_key_2("HOST"),
56 m_key_3("EVENT_NAME") {}
57
59
60 virtual bool match(PFS_account *pfs);
61 virtual bool match(PFS_instr_class *instr_class);
62
63 private:
67};
68
69/** A row of PERFORMANCE_SCHEMA.MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME. */
71 /** Column USER, HOST. */
73 /** Column EVENT_NAME. */
75 /** Columns COUNT_ALLOC, ... */
77};
78
79/**
80 Position of a cursor on
81 PERFORMANCE_SCHEMA.EVENTS_MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME.
82 Index 1 on account (0 based)
83 Index 2 on memory class (1 based)
84*/
87
88 inline void reset(void) {
89 m_index_1 = 0;
90 m_index_2 = 1;
91 }
92
93 inline void next_account(void) {
94 m_index_1++;
95 m_index_2 = 1;
96 }
97
98 inline void next_class(void) { m_index_2++; }
99};
100
101/** Table PERFORMANCE_SCHEMA.MEMORY_SUMMARY_BY_ACCOUNT_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_next() override;
113 int rnd_pos(const void *pos) override;
114
115 int index_init(uint idx, bool sorted) override;
116 int index_next() override;
117
118 private:
119 int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
120 bool read_all) override;
121
123
124 public:
126
127 private:
128 int make_row(PFS_account *account, PFS_memory_class *klass);
129
130 /** Table share lock. */
132 /** Table definition. */
134
135 /** Current row. */
137 /** Current position. */
139 /** Next position. */
141
143};
144
145/** @} */
146#endif
Definition: field.h:573
Definition: pfs_engine_table.h:299
An abstract PERFORMANCE_SCHEMA table.
Definition: pfs_engine_table.h:69
Definition: table_mems_by_account_by_event_name.h:50
PFS_key_user m_key_1
Definition: table_mems_by_account_by_event_name.h:64
PFS_key_host m_key_2
Definition: table_mems_by_account_by_event_name.h:65
~PFS_index_mems_by_account_by_event_name() override=default
virtual bool match(PFS_account *pfs)
Definition: table_mems_by_account_by_event_name.cc:87
PFS_index_mems_by_account_by_event_name()
Definition: table_mems_by_account_by_event_name.h:52
PFS_key_event_name m_key_3
Definition: table_mems_by_account_by_event_name.h:66
Definition: table_helper.h:1431
Definition: table_helper.h:1458
Definition: table_helper.h:1446
Class to hold information regarding a table to be created on behalf of a plugin.
Definition: plugin_table.h:39
Table PERFORMANCE_SCHEMA.MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME.
Definition: table_mems_by_account_by_event_name.h:102
~table_mems_by_account_by_event_name() override=default
static ha_rows get_row_count()
Definition: table_mems_by_account_by_event_name.cc:123
pos_mems_by_account_by_event_name m_next_pos
Next position.
Definition: table_mems_by_account_by_event_name.h:140
int index_next() override
Find key in index, read record.
Definition: table_mems_by_account_by_event_name.cc:188
table_mems_by_account_by_event_name()
Definition: table_mems_by_account_by_event_name.cc:127
static PFS_engine_table * create(PFS_engine_table_share *)
Definition: table_mems_by_account_by_event_name.cc:112
static PFS_engine_table_share m_share
Table share.
Definition: table_mems_by_account_by_event_name.h:105
void reset_position(void) override
Reset the cursor position to the beginning of the table.
Definition: table_mems_by_account_by_event_name.cc:130
static Plugin_table m_table_def
Table definition.
Definition: table_mems_by_account_by_event_name.h:133
int read_row_values(TABLE *table, unsigned char *buf, Field **fields, bool read_all) override
Read the current row values.
Definition: table_mems_by_account_by_event_name.cc:245
static THR_LOCK m_table_lock
Table share lock.
Definition: table_mems_by_account_by_event_name.h:131
int rnd_pos(const void *pos) override
Fetch a row by position.
Definition: table_mems_by_account_by_event_name.cc:159
PFS_index_mems_by_account_by_event_name * m_opened_index
Definition: table_mems_by_account_by_event_name.h:142
int rnd_next() override
Fetch the next row in this cursor.
Definition: table_mems_by_account_by_event_name.cc:135
static int delete_all_rows()
Definition: table_mems_by_account_by_event_name.cc:117
pos_mems_by_account_by_event_name m_pos
Current position.
Definition: table_mems_by_account_by_event_name.h:138
int make_row(PFS_account *account, PFS_memory_class *klass)
Definition: table_mems_by_account_by_event_name.cc:218
row_mems_by_account_by_event_name m_row
Current row.
Definition: table_mems_by_account_by_event_name.h:136
int index_init(uint idx, bool sorted) override
Definition: table_mems_by_account_by_event_name.cc:178
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
Row fragment for columns USER, HOST.
Definition: table_helper.h:565
Per account statistics.
Definition: pfs_account.h:66
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
Information for all instrumentation.
Definition: pfs_instr_class.h:204
Instrumentation metadata for a memory.
Definition: pfs_instr_class.h:555
Row fragment for memory statistics columns.
Definition: table_helper.h:1076
Definition: table.h:1394
Definition: thr_lock.h:138
Position of a cursor on PERFORMANCE_SCHEMA.EVENTS_MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME.
Definition: table_mems_by_account_by_event_name.h:85
void reset(void)
Definition: table_mems_by_account_by_event_name.h:88
void next_account(void)
Definition: table_mems_by_account_by_event_name.h:93
void next_class(void)
Definition: table_mems_by_account_by_event_name.h:98
pos_mems_by_account_by_event_name()
Definition: table_mems_by_account_by_event_name.h:86
A row of PERFORMANCE_SCHEMA.MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME.
Definition: table_mems_by_account_by_event_name.h:70
PFS_memory_stat_row m_stat
Columns COUNT_ALLOC, ...
Definition: table_mems_by_account_by_event_name.h:76
PFS_event_name_row m_event_name
Column EVENT_NAME.
Definition: table_mems_by_account_by_event_name.h:74
PFS_account_row m_account
Column USER, HOST.
Definition: table_mems_by_account_by_event_name.h:72
Helpers to implement a performance schema table.
unsigned int uint
Definition: uca-dump.cc:29