1 /* Copyright (c) 2010, 2021, Oracle and/or its affiliates.
2 
3   This program is free software; you can redistribute it and/or modify
4   it under the terms of the GNU General Public License, version 2.0,
5   as published by the Free Software Foundation.
6 
7   This program is also distributed with certain software (including
8   but not limited to OpenSSL) that is licensed under separate terms,
9   as designated in a particular file or component or in included license
10   documentation.  The authors of MySQL hereby grant you an additional
11   permission to link the program and your derivative works with the
12   separately licensed software that they have included with MySQL.
13 
14   This program is distributed in the hope that it will be useful,
15   but WITHOUT ANY WARRANTY; without even the implied warranty of
16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   GNU General Public License, version 2.0, for more details.
18 
19   You should have received a copy of the GNU General Public License
20   along with this program; if not, write to the Free Software
21   Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
22 
23 #ifndef TABLE_ETS_BY_ACCOUNT_BY_EVENT_NAME_H
24 #define TABLE_ETS_BY_ACCOUNT_BY_EVENT_NAME_H
25 
26 /**
27   @file storage/perfschema/table_ets_by_account_by_event_name.h
28   Table EVENTS_TRANSACTIONS_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME (declarations).
29 */
30 
31 #include "pfs_column_types.h"
32 #include "pfs_engine_table.h"
33 #include "pfs_instr_class.h"
34 #include "pfs_instr.h"
35 #include "pfs_account.h"
36 #include "table_helper.h"
37 
38 /**
39   @addtogroup Performance_schema_tables
40   @{
41 */
42 
43 /**
44   A row of table
45   PERFORMANCE_SCHEMA.EVENTS_TRANSACTIONS_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME.
46 */
47 struct row_ets_by_account_by_event_name
48 {
49   /** Columns USER, HOST. */
50   PFS_account_row m_account;
51   /** Column EVENT_NAME. */
52   PFS_event_name_row m_event_name;
53   /**
54     Columns COUNT_STAR, SUM/MIN/AVG/MAX_TIMER_WAIT,
55     COUNT_READ_WRITE, SUM/MIN/AVG/MAX_TIMER_READ_WRITE,
56     COUNT_READ_ONLY, SUM/MIN/AVG/MAX_TIMER_READ_ONLY
57   */
58   PFS_transaction_stat_row m_stat;
59 };
60 
61 /**
62   Position of a cursor on
63   PERFORMANCE_SCHEMA.EVENTS_TRANSACTIONS_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME.
64   Index 1 on account (0 based)
65   Index 2 on transaction class (1 based)
66 */
67 struct pos_ets_by_account_by_event_name
68 : public PFS_double_index
69 {
pos_ets_by_account_by_event_namepos_ets_by_account_by_event_name70   pos_ets_by_account_by_event_name()
71     : PFS_double_index(0, 1)
72   {}
73 
resetpos_ets_by_account_by_event_name74   inline void reset(void)
75   {
76     m_index_1= 0;
77     m_index_2= 1;
78   }
79 
next_accountpos_ets_by_account_by_event_name80   inline void next_account(void)
81   {
82     m_index_1++;
83     m_index_2= 1;
84   }
85 };
86 
87 /** Table PERFORMANCE_SCHEMA.EVENTS_TRANSACTIONS_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME. */
88 class table_ets_by_account_by_event_name : public PFS_engine_table
89 {
90 public:
91   /** Table share */
92   static PFS_engine_table_share m_share;
93   static PFS_engine_table* create();
94   static int delete_all_rows();
95   static ha_rows get_row_count();
96 
97   virtual int rnd_init(bool scan);
98   virtual int rnd_next();
99   virtual int rnd_pos(const void *pos);
100   virtual void reset_position(void);
101 
102 protected:
103   virtual int read_row_values(TABLE *table,
104                               unsigned char *buf,
105                               Field **fields,
106                               bool read_all);
107 
108   table_ets_by_account_by_event_name();
109 
110 public:
~table_ets_by_account_by_event_name()111   ~table_ets_by_account_by_event_name()
112   {}
113 
114 protected:
115   void make_row(PFS_account *account, PFS_transaction_class *klass);
116 
117 private:
118   /** Table share lock. */
119   static THR_LOCK m_table_lock;
120   /** Fields definition. */
121   static TABLE_FIELD_DEF m_field_def;
122 
123   /** Current row. */
124   row_ets_by_account_by_event_name m_row;
125   /** True is the current row exists. */
126   bool m_row_exists;
127   /** Current position. */
128   pos_ets_by_account_by_event_name m_pos;
129   /** Next position. */
130   pos_ets_by_account_by_event_name m_next_pos;
131 };
132 
133 /** @} */
134 #endif
135