1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
/**
@file storage/perfschema/table_performance_timers.cc
Table PERFORMANCE_TIMERS (implementation).
*/
#include "my_global.h"
#include "my_pthread.h"
#include "table_performance_timers.h"
#include "pfs_timer.h"
#include "pfs_global.h"
THR_LOCK table_performance_timers::m_table_lock;
static const TABLE_FIELD_TYPE field_types[]=
{
{
{ C_STRING_WITH_LEN("TIMER_NAME") },
{ C_STRING_WITH_LEN("enum(\'CYCLE\',\'NANOSECOND\',\'MICROSECOND\',"
"\'MILLISECOND\',\'TICK\')") },
{ NULL, 0}
},
{
{ C_STRING_WITH_LEN("TIMER_FREQUENCY") },
{ C_STRING_WITH_LEN("bigint(20)") },
{ NULL, 0}
},
{
{ C_STRING_WITH_LEN("TIMER_RESOLUTION") },
{ C_STRING_WITH_LEN("bigint(20)") },
{ NULL, 0}
},
{
{ C_STRING_WITH_LEN("TIMER_OVERHEAD") },
{ C_STRING_WITH_LEN("bigint(20)") },
{ NULL, 0}
}
};
TABLE_FIELD_DEF
table_performance_timers::m_field_def=
{ 4, field_types, 0, (uint*) 0 };
PFS_engine_table_share
table_performance_timers::m_share=
{
{ C_STRING_WITH_LEN("performance_timers") },
&pfs_readonly_acl,
&table_performance_timers::create,
NULL, /* write_row */
NULL, /* delete_all_rows */
NULL, /* get_row_count */
COUNT_TIMER_NAME, /* records */
sizeof(PFS_simple_index), /* ref length */
&m_table_lock,
&m_field_def,
false /* checked */
};
PFS_engine_table* table_performance_timers::create(void)
{
return new table_performance_timers();
}
table_performance_timers::table_performance_timers()
: PFS_engine_table(&m_share, &m_pos),
m_row(NULL), m_pos(0), m_next_pos(0)
{
int index;
index= (int)TIMER_NAME_CYCLE - FIRST_TIMER_NAME;
m_data[index].m_timer_name= TIMER_NAME_CYCLE;
m_data[index].m_info= pfs_timer_info.cycles;
index= (int)TIMER_NAME_NANOSEC - FIRST_TIMER_NAME;
m_data[index].m_timer_name= TIMER_NAME_NANOSEC;
m_data[index].m_info= pfs_timer_info.nanoseconds;
index= (int)TIMER_NAME_MICROSEC - FIRST_TIMER_NAME;
m_data[index].m_timer_name= TIMER_NAME_MICROSEC;
m_data[index].m_info= pfs_timer_info.microseconds;
index= (int)TIMER_NAME_MILLISEC - FIRST_TIMER_NAME;
m_data[index].m_timer_name= TIMER_NAME_MILLISEC;
m_data[index].m_info= pfs_timer_info.milliseconds;
index= (int)TIMER_NAME_TICK - FIRST_TIMER_NAME;
m_data[index].m_timer_name= TIMER_NAME_TICK;
m_data[index].m_info= pfs_timer_info.ticks;
}
void table_performance_timers::reset_position(void)
{
m_pos.m_index= 0;
m_next_pos.m_index= 0;
}
int table_performance_timers::rnd_next(void)
{
int result;
m_pos.set_at(&m_next_pos);
if (m_pos.m_index < COUNT_TIMER_NAME)
{
m_row= &m_data[m_pos.m_index];
m_next_pos.set_after(&m_pos);
result= 0;
}
else
{
m_row= NULL;
result= HA_ERR_END_OF_FILE;
}
return result;
}
int table_performance_timers::rnd_pos(const void *pos)
{
set_position(pos);
DBUG_ASSERT(m_pos.m_index < COUNT_TIMER_NAME);
m_row= &m_data[m_pos.m_index];
return 0;
}
int table_performance_timers::read_row_values(TABLE *table,
unsigned char *buf,
Field **fields,
bool read_all)
{
Field *f;
DBUG_ASSERT(m_row);
/* Set the null bits */
DBUG_ASSERT(table->s->null_bytes == 1);
buf[0]= 0;
for (; (f= *fields) ; fields++)
{
if (read_all || bitmap_is_set(table->read_set, f->field_index))
{
switch(f->field_index)
{
case 0: /* TIMER_NAME */
set_field_enum(f, m_row->m_timer_name);
break;
case 1: /* TIMER_FREQUENCY */
if (m_row->m_info.routine != 0)
set_field_ulonglong(f, m_row->m_info.frequency);
else
f->set_null();
break;
case 2: /* TIMER_RESOLUTION */
if (m_row->m_info.routine != 0)
set_field_ulonglong(f, m_row->m_info.resolution);
else
f->set_null();
break;
case 3: /* TIMER_OVERHEAD */
if (m_row->m_info.routine != 0)
set_field_ulonglong(f, m_row->m_info.overhead);
else
f->set_null();
break;
default:
DBUG_ASSERT(false);
}
}
}
return 0;
}
|
