MySQL 9.1.0
Source Code Documentation
table_hosts.h
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23
24#ifndef TABLE_HOSTS_H
25#define TABLE_HOSTS_H
26
27/**
28 @file storage/perfschema/table_hosts.h
29 TABLE HOSTS.
30*/
31
32#include <sys/types.h>
33
37
38struct PFS_host;
39
40/**
41 @addtogroup performance_schema_tables
42 @{
43*/
44
46 public:
48
49 ~PFS_index_hosts_by_host() override = default;
50
51 bool match(PFS_host *pfs) override;
52
53 private:
55};
56
57/**
58 A row of PERFORMANCE_SCHEMA.HOSTS.
59*/
60struct row_hosts {
61 /** Column HOST. */
63 /** Columns CURRENT_CONNECTIONS, TOTAL_CONNECTIONS. */
65};
66
67/** Table PERFORMANCE_SCHEMA.HOSTS. */
69 public:
70 /** Table share */
72 /** Table builder */
74 static int delete_all_rows();
75
76 protected:
77 int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
78 bool read_all) override;
79
80 protected:
82
83 public:
84 ~table_hosts() override = default;
85
86 int index_init(uint idx, bool sorted) override;
87
88 private:
89 int make_row(PFS_host *pfs) override;
90
91 /** Table share lock. */
93 /** Table definition. */
95
96 /** Current row. */
98};
99
100/** @} */
101#endif
Definition: field.h:577
An abstract PERFORMANCE_SCHEMA table.
Definition: pfs_engine_table.h:70
Definition: table_hosts.h:45
bool match(PFS_host *pfs) override
Definition: table_hosts.cc:81
PFS_index_hosts_by_host()
Definition: table_hosts.h:47
PFS_key_host m_key
Definition: table_hosts.h:54
~PFS_index_hosts_by_host() override=default
Definition: cursor_by_host.h:42
Definition: table_helper.h:1519
Class to hold information regarding a table to be created on behalf of a plugin.
Definition: plugin_table.h:40
Cursor CURSOR_BY_HOST.
Definition: cursor_by_host.h:52
Table PERFORMANCE_SCHEMA.HOSTS.
Definition: table_hosts.h:68
static int delete_all_rows()
Definition: table_hosts.cc:95
static Plugin_table m_table_def
Table definition.
Definition: table_hosts.h:94
static THR_LOCK m_table_lock
Table share lock.
Definition: table_hosts.h:92
static PFS_engine_table * create(PFS_engine_table_share *)
Table builder.
Definition: table_hosts.cc:91
int make_row(PFS_host *pfs) override
Definition: table_hosts.cc:128
row_hosts m_row
Current row.
Definition: table_hosts.h:97
int index_init(uint idx, bool sorted) override
Definition: table_hosts.cc:121
~table_hosts() override=default
table_hosts()
Definition: table_hosts.cc:119
static PFS_engine_table_share m_share
Table share.
Definition: table_hosts.h:71
int read_row_values(TABLE *table, unsigned char *buf, Field **fields, bool read_all) override
Read the current row values.
Definition: table_hosts.cc:151
Cursor CURSOR_BY_HOST (declarations).
static PFS_engine_table_share_proxy table
Definition: pfs.cc:61
Definition: buf0block_hint.cc:30
Data types for columns used in the performance schema tables (declarations)
static const LEX_CSTRING pfs
Definition: sql_show_processlist.cc:66
Row fragment for connection statistics.
Definition: table_helper.h:1028
A PERFORMANCE_SCHEMA table share.
Definition: pfs_engine_table.h:359
Row fragment for column HOST.
Definition: table_helper.h:528
Per host statistics.
Definition: pfs_host.h:64
Definition: table.h:1421
Definition: thr_lock.h:139
A row of PERFORMANCE_SCHEMA.HOSTS.
Definition: table_hosts.h:60
PFS_host_row m_host
Column HOST.
Definition: table_hosts.h:62
PFS_connection_stat_row m_connection_stat
Columns CURRENT_CONNECTIONS, TOTAL_CONNECTIONS.
Definition: table_hosts.h:64
Helpers to implement a performance schema table.