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 St, Fifth Floor, Boston, MA 02110-1301 USA */
22
23 /**
24 @file storage/perfschema/table_ets_by_thread_by_event_name.cc
25 Table EVENTS_TRANSACTIONS_SUMMARY_BY_HOST_BY_EVENT_NAME (implementation).
26 */
27
28 #include "my_global.h"
29 #include "my_thread.h"
30 #include "pfs_instr_class.h"
31 #include "pfs_column_types.h"
32 #include "pfs_column_values.h"
33 #include "table_ets_by_thread_by_event_name.h"
34 #include "pfs_global.h"
35 #include "pfs_visitor.h"
36 #include "pfs_buffer_container.h"
37 #include "field.h"
38
39 THR_LOCK table_ets_by_thread_by_event_name::m_table_lock;
40
41 static const TABLE_FIELD_TYPE field_types[]=
42 {
43 {
44 { C_STRING_WITH_LEN("THREAD_ID") },
45 { C_STRING_WITH_LEN("bigint(20)") },
46 { NULL, 0}
47 },
48 {
49 { C_STRING_WITH_LEN("EVENT_NAME") },
50 { C_STRING_WITH_LEN("varchar(128)") },
51 { NULL, 0}
52 },
53 {
54 { C_STRING_WITH_LEN("COUNT_STAR") },
55 { C_STRING_WITH_LEN("bigint(20)") },
56 { NULL, 0}
57 },
58 {
59 { C_STRING_WITH_LEN("SUM_TIMER_WAIT") },
60 { C_STRING_WITH_LEN("bigint(20)") },
61 { NULL, 0}
62 },
63 {
64 { C_STRING_WITH_LEN("MIN_TIMER_WAIT") },
65 { C_STRING_WITH_LEN("bigint(20)") },
66 { NULL, 0}
67 },
68 {
69 { C_STRING_WITH_LEN("AVG_TIMER_WAIT") },
70 { C_STRING_WITH_LEN("bigint(20)") },
71 { NULL, 0}
72 },
73 {
74 { C_STRING_WITH_LEN("MAX_TIMER_WAIT") },
75 { C_STRING_WITH_LEN("bigint(20)") },
76 { NULL, 0}
77 },
78 {
79 { C_STRING_WITH_LEN("COUNT_READ_WRITE") },
80 { C_STRING_WITH_LEN("bigint(20)") },
81 { NULL, 0}
82 },
83 {
84 { C_STRING_WITH_LEN("SUM_TIMER_READ_WRITE") },
85 { C_STRING_WITH_LEN("bigint(20)") },
86 { NULL, 0}
87 },
88 {
89 { C_STRING_WITH_LEN("MIN_TIMER_READ_WRITE") },
90 { C_STRING_WITH_LEN("bigint(20)") },
91 { NULL, 0}
92 },
93 {
94 { C_STRING_WITH_LEN("AVG_TIMER_READ_WRITE") },
95 { C_STRING_WITH_LEN("bigint(20)") },
96 { NULL, 0}
97 },
98 {
99 { C_STRING_WITH_LEN("MAX_TIMER_READ_WRITE") },
100 { C_STRING_WITH_LEN("bigint(20)") },
101 { NULL, 0}
102 },
103 {
104 { C_STRING_WITH_LEN("COUNT_READ_ONLY") },
105 { C_STRING_WITH_LEN("bigint(20)") },
106 { NULL, 0}
107 },
108 {
109 { C_STRING_WITH_LEN("SUM_TIMER_READ_ONLY") },
110 { C_STRING_WITH_LEN("bigint(20)") },
111 { NULL, 0}
112 },
113 {
114 { C_STRING_WITH_LEN("MIN_TIMER_READ_ONLY") },
115 { C_STRING_WITH_LEN("bigint(20)") },
116 { NULL, 0}
117 },
118 {
119 { C_STRING_WITH_LEN("AVG_TIMER_READ_ONLY") },
120 { C_STRING_WITH_LEN("bigint(20)") },
121 { NULL, 0}
122 },
123 {
124 { C_STRING_WITH_LEN("MAX_TIMER_READ_ONLY") },
125 { C_STRING_WITH_LEN("bigint(20)") },
126 { NULL, 0}
127 }
128 };
129
130 TABLE_FIELD_DEF
131 table_ets_by_thread_by_event_name::m_field_def=
132 { 17, field_types };
133
134 PFS_engine_table_share
135 table_ets_by_thread_by_event_name::m_share=
136 {
137 { C_STRING_WITH_LEN("events_transactions_summary_by_thread_by_event_name") },
138 &pfs_truncatable_acl,
139 table_ets_by_thread_by_event_name::create,
140 NULL, /* write_row */
141 table_ets_by_thread_by_event_name::delete_all_rows,
142 table_ets_by_thread_by_event_name::get_row_count,
143 sizeof(pos_ets_by_thread_by_event_name),
144 &m_table_lock,
145 &m_field_def,
146 false, /* checked */
147 false /* perpetual */
148 };
149
150 PFS_engine_table*
create(void)151 table_ets_by_thread_by_event_name::create(void)
152 {
153 return new table_ets_by_thread_by_event_name();
154 }
155
156 int
delete_all_rows(void)157 table_ets_by_thread_by_event_name::delete_all_rows(void)
158 {
159 reset_events_transactions_by_thread();
160 return 0;
161 }
162
163 ha_rows
get_row_count(void)164 table_ets_by_thread_by_event_name::get_row_count(void)
165 {
166 return global_thread_container.get_row_count() * transaction_class_max;
167 }
168
table_ets_by_thread_by_event_name()169 table_ets_by_thread_by_event_name::table_ets_by_thread_by_event_name()
170 : PFS_engine_table(&m_share, &m_pos),
171 m_row_exists(false), m_pos(), m_next_pos()
172 {}
173
reset_position(void)174 void table_ets_by_thread_by_event_name::reset_position(void)
175 {
176 m_pos.reset();
177 m_next_pos.reset();
178 }
179
rnd_init(bool scan)180 int table_ets_by_thread_by_event_name::rnd_init(bool scan)
181 {
182 m_normalizer= time_normalizer::get(transaction_timer);
183 return 0;
184 }
185
rnd_next(void)186 int table_ets_by_thread_by_event_name::rnd_next(void)
187 {
188 PFS_thread *thread;
189 PFS_transaction_class *transaction_class;
190 bool has_more_thread= true;
191
192 for (m_pos.set_at(&m_next_pos);
193 has_more_thread;
194 m_pos.next_thread())
195 {
196 thread= global_thread_container.get(m_pos.m_index_1, & has_more_thread);
197 if (thread != NULL)
198 {
199 transaction_class= find_transaction_class(m_pos.m_index_2);
200 if (transaction_class)
201 {
202 make_row(thread, transaction_class);
203 m_next_pos.set_after(&m_pos);
204 return 0;
205 }
206 }
207 }
208
209 return HA_ERR_END_OF_FILE;
210 }
211
212 int
rnd_pos(const void * pos)213 table_ets_by_thread_by_event_name::rnd_pos(const void *pos)
214 {
215 PFS_thread *thread;
216 PFS_transaction_class *transaction_class;
217
218 set_position(pos);
219
220 thread= global_thread_container.get(m_pos.m_index_1);
221 if (thread != NULL)
222 {
223 transaction_class= find_transaction_class(m_pos.m_index_2);
224 if (transaction_class)
225 {
226 make_row(thread, transaction_class);
227 return 0;
228 }
229 }
230
231 return HA_ERR_RECORD_DELETED;
232 }
233
234 void table_ets_by_thread_by_event_name
make_row(PFS_thread * thread,PFS_transaction_class * klass)235 ::make_row(PFS_thread *thread, PFS_transaction_class *klass)
236 {
237 pfs_optimistic_state lock;
238 m_row_exists= false;
239
240 /* Protect this reader against a thread termination */
241 thread->m_lock.begin_optimistic_lock(&lock);
242
243 m_row.m_thread_internal_id= thread->m_thread_internal_id;
244
245 m_row.m_event_name.make_row(klass);
246
247 PFS_connection_transaction_visitor visitor(klass);
248 PFS_connection_iterator::visit_thread(thread, &visitor);
249
250 if (! thread->m_lock.end_optimistic_lock(&lock))
251 return;
252
253 m_row_exists= true;
254 m_row.m_stat.set(m_normalizer, &visitor.m_stat);
255 }
256
257 int table_ets_by_thread_by_event_name
read_row_values(TABLE * table,unsigned char *,Field ** fields,bool read_all)258 ::read_row_values(TABLE *table, unsigned char *, Field **fields,
259 bool read_all)
260 {
261 Field *f;
262
263 if (unlikely(! m_row_exists))
264 return HA_ERR_RECORD_DELETED;
265
266 /* Set the null bits */
267 assert(table->s->null_bytes == 0);
268
269 for (; (f= *fields) ; fields++)
270 {
271 if (read_all || bitmap_is_set(table->read_set, f->field_index))
272 {
273 switch(f->field_index)
274 {
275 case 0: /* THREAD_ID */
276 set_field_ulonglong(f, m_row.m_thread_internal_id);
277 break;
278 case 1: /* EVENT_NAME */
279 m_row.m_event_name.set_field(f);
280 break;
281 default:
282 /**
283 COUNT_STAR, SUM/MIN/AVG/MAX_TIMER_WAIT
284 COUNT_READ_WRITE, SUM/MIN/AVG/MAX_TIMER_READ_WRITE
285 COUNT_READ_ONLY, SUM/MIN/AVG/MAX_TIMER_READ_ONLY
286 */
287 m_row.m_stat.set_field(f->field_index-2, f);
288 break;
289 }
290 }
291 }
292
293 return 0;
294 }
295
296