1/* Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
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 as published by
5 the Free Software Foundation; version 2 of the License.
6
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 GNU General Public License for more details.
11
12 You should have received a copy of the GNU General Public License
13 along with this program; if not, write to the Free Software
14 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
15
16/**
17 @file storage/perfschema/table_ews_by_host_by_event_name.cc
18 Table EVENTS_WAITS_SUMMARY_BY_HOST_BY_EVENT_NAME (implementation).
19*/
20
21#include "my_global.h"
22#include "my_pthread.h"
23#include "pfs_instr_class.h"
24#include "pfs_column_types.h"
25#include "pfs_column_values.h"
26#include "table_ews_by_host_by_event_name.h"
27#include "pfs_global.h"
28#include "pfs_account.h"
29#include "pfs_visitor.h"
30
31THR_LOCK table_ews_by_host_by_event_name::m_table_lock;
32
33PFS_engine_table_share
34table_ews_by_host_by_event_name::m_share=
35{
36 { C_STRING_WITH_LEN("events_waits_summary_by_host_by_event_name") },
37 &pfs_truncatable_acl,
38 table_ews_by_host_by_event_name::create,
39 NULL, /* write_row */
40 table_ews_by_host_by_event_name::delete_all_rows,
41 NULL, /* get_row_count */
42 1000, /* records */
43 sizeof(pos_ews_by_host_by_event_name),
44 &m_table_lock,
45 { C_STRING_WITH_LEN("CREATE TABLE events_waits_summary_by_host_by_event_name("
46 "HOST CHAR(60) collate utf8_bin default null,"
47 "EVENT_NAME VARCHAR(128) not null,"
48 "COUNT_STAR BIGINT unsigned not null,"
49 "SUM_TIMER_WAIT BIGINT unsigned not null,"
50 "MIN_TIMER_WAIT BIGINT unsigned not null,"
51 "AVG_TIMER_WAIT BIGINT unsigned not null,"
52 "MAX_TIMER_WAIT BIGINT unsigned not null)") }
53};
54
55PFS_engine_table*
56table_ews_by_host_by_event_name::create(void)
57{
58 return new table_ews_by_host_by_event_name();
59}
60
61int
62table_ews_by_host_by_event_name::delete_all_rows(void)
63{
64 reset_events_waits_by_thread();
65 reset_events_waits_by_account();
66 reset_events_waits_by_host();
67 return 0;
68}
69
70table_ews_by_host_by_event_name::table_ews_by_host_by_event_name()
71 : PFS_engine_table(&m_share, &m_pos),
72 m_row_exists(false), m_pos(), m_next_pos()
73{}
74
75void table_ews_by_host_by_event_name::reset_position(void)
76{
77 m_pos.reset();
78 m_next_pos.reset();
79}
80
81int table_ews_by_host_by_event_name::rnd_next(void)
82{
83 PFS_host *host;
84 PFS_instr_class *instr_class;
85
86 for (m_pos.set_at(&m_next_pos);
87 m_pos.has_more_host();
88 m_pos.next_host())
89 {
90 host= &host_array[m_pos.m_index_1];
91 if (host->m_lock.is_populated())
92 {
93 for ( ;
94 m_pos.has_more_view();
95 m_pos.next_view())
96 {
97 switch (m_pos.m_index_2)
98 {
99 case pos_ews_by_host_by_event_name::VIEW_MUTEX:
100 instr_class= find_mutex_class(m_pos.m_index_3);
101 break;
102 case pos_ews_by_host_by_event_name::VIEW_RWLOCK:
103 instr_class= find_rwlock_class(m_pos.m_index_3);
104 break;
105 case pos_ews_by_host_by_event_name::VIEW_COND:
106 instr_class= find_cond_class(m_pos.m_index_3);
107 break;
108 case pos_ews_by_host_by_event_name::VIEW_FILE:
109 instr_class= find_file_class(m_pos.m_index_3);
110 break;
111 case pos_ews_by_host_by_event_name::VIEW_TABLE:
112 instr_class= find_table_class(m_pos.m_index_3);
113 break;
114 case pos_ews_by_host_by_event_name::VIEW_SOCKET:
115 instr_class= find_socket_class(m_pos.m_index_3);
116 break;
117 case pos_ews_by_host_by_event_name::VIEW_IDLE:
118 instr_class= find_idle_class(m_pos.m_index_3);
119 break;
120 default:
121 instr_class= NULL;
122 DBUG_ASSERT(false);
123 break;
124 }
125
126 if (instr_class)
127 {
128 make_row(host, instr_class);
129 m_next_pos.set_after(&m_pos);
130 return 0;
131 }
132 }
133 }
134 }
135
136 return HA_ERR_END_OF_FILE;
137}
138
139int
140table_ews_by_host_by_event_name::rnd_pos(const void *pos)
141{
142 PFS_host *host;
143 PFS_instr_class *instr_class;
144
145 set_position(pos);
146 DBUG_ASSERT(m_pos.m_index_1 < host_max);
147
148 host= &host_array[m_pos.m_index_1];
149 if (! host->m_lock.is_populated())
150 return HA_ERR_RECORD_DELETED;
151
152 switch (m_pos.m_index_2)
153 {
154 case pos_ews_by_host_by_event_name::VIEW_MUTEX:
155 instr_class= find_mutex_class(m_pos.m_index_3);
156 break;
157 case pos_ews_by_host_by_event_name::VIEW_RWLOCK:
158 instr_class= find_rwlock_class(m_pos.m_index_3);
159 break;
160 case pos_ews_by_host_by_event_name::VIEW_COND:
161 instr_class= find_cond_class(m_pos.m_index_3);
162 break;
163 case pos_ews_by_host_by_event_name::VIEW_FILE:
164 instr_class= find_file_class(m_pos.m_index_3);
165 break;
166 case pos_ews_by_host_by_event_name::VIEW_TABLE:
167 instr_class= find_table_class(m_pos.m_index_3);
168 break;
169 case pos_ews_by_host_by_event_name::VIEW_SOCKET:
170 instr_class= find_socket_class(m_pos.m_index_3);
171 break;
172 case pos_ews_by_host_by_event_name::VIEW_IDLE:
173 instr_class= find_idle_class(m_pos.m_index_3);
174 break;
175 default:
176 instr_class= NULL;
177 DBUG_ASSERT(false);
178 break;
179 }
180 if (instr_class)
181 {
182 make_row(host, instr_class);
183 return 0;
184 }
185
186 return HA_ERR_RECORD_DELETED;
187}
188
189void table_ews_by_host_by_event_name
190::make_row(PFS_host *host, PFS_instr_class *klass)
191{
192 pfs_lock lock;
193 m_row_exists= false;
194
195 host->m_lock.begin_optimistic_lock(&lock);
196
197 if (m_row.m_host.make_row(host))
198 return;
199
200 m_row.m_event_name.make_row(klass);
201
202 PFS_connection_wait_visitor visitor(klass);
203 PFS_connection_iterator::visit_host(host, true, true, & visitor);
204
205 if (! host->m_lock.end_optimistic_lock(&lock))
206 return;
207
208 m_row_exists= true;
209
210 get_normalizer(klass);
211 m_row.m_stat.set(m_normalizer, &visitor.m_stat);
212}
213
214int table_ews_by_host_by_event_name
215::read_row_values(TABLE *table, unsigned char *buf, Field **fields,
216 bool read_all)
217{
218 Field *f;
219
220 if (unlikely(! m_row_exists))
221 return HA_ERR_RECORD_DELETED;
222
223 /* Set the null bits */
224 DBUG_ASSERT(table->s->null_bytes == 1);
225 buf[0]= 0;
226
227 for (; (f= *fields) ; fields++)
228 {
229 if (read_all || bitmap_is_set(table->read_set, f->field_index))
230 {
231 switch(f->field_index)
232 {
233 case 0: /* HOST */
234 m_row.m_host.set_field(f);
235 break;
236 case 1: /* EVENT_NAME */
237 m_row.m_event_name.set_field(f);
238 break;
239 default: /* 2, ... COUNT/SUM/MIN/AVG/MAX */
240 m_row.m_stat.set_field(f->field_index - 2, f);
241 break;
242 }
243 }
244 }
245
246 return 0;
247}
248
249