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
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/* 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, version 2.0,
as published by the Free Software Foundation.
This program is also distributed with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have included with MySQL.
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, version 2.0, 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, Fifth Floor, Boston, MA 02110-1335 USA */
/**
@file storage/perfschema/table_socket_instances.cc
Table SOCKET_INSTANCES (implementation).
*/
#include "my_global.h"
#include "my_pthread.h"
#include "pfs_instr.h"
#include "pfs_column_types.h"
#include "pfs_column_values.h"
#include "table_socket_instances.h"
#include "pfs_global.h"
THR_LOCK table_socket_instances::m_table_lock;
PFS_engine_table_share
table_socket_instances::m_share=
{
{ C_STRING_WITH_LEN("socket_instances") },
&pfs_readonly_acl,
&table_socket_instances::create,
NULL, /* write_row */
NULL, /* delete_all_rows */
NULL, /* get_row_count */
1000, /* records */
sizeof(PFS_simple_index),
&m_table_lock,
{ C_STRING_WITH_LEN("CREATE TABLE socket_instances("
"EVENT_NAME VARCHAR(128) not null,"
"OBJECT_INSTANCE_BEGIN BIGINT unsigned not null,"
"THREAD_ID BIGINT unsigned,"
"SOCKET_ID INTEGER not null,"
"IP VARCHAR(64) not null,"
"PORT INTEGER not null,"
"STATE ENUM('IDLE','ACTIVE') not null)") }
};
PFS_engine_table* table_socket_instances::create(void)
{
return new table_socket_instances();
}
table_socket_instances::table_socket_instances()
: PFS_engine_table(&m_share, &m_pos),
m_row_exists(false), m_pos(0), m_next_pos(0)
{}
void table_socket_instances::reset_position(void)
{
m_pos.m_index= 0;
m_next_pos.m_index= 0;
}
int table_socket_instances::rnd_next(void)
{
PFS_socket *pfs;
for (m_pos.set_at(&m_next_pos);
m_pos.m_index < socket_max;
m_pos.next())
{
pfs= &socket_array[m_pos.m_index];
if (pfs->m_lock.is_populated())
{
make_row(pfs);
m_next_pos.set_after(&m_pos);
return 0;
}
}
return HA_ERR_END_OF_FILE;
}
int table_socket_instances::rnd_pos(const void *pos)
{
PFS_socket *pfs;
set_position(pos);
DBUG_ASSERT(m_pos.m_index < socket_max);
pfs= &socket_array[m_pos.m_index];
if (! pfs->m_lock.is_populated())
return HA_ERR_RECORD_DELETED;
make_row(pfs);
return 0;
}
void table_socket_instances::make_row(PFS_socket *pfs)
{
pfs_lock lock;
PFS_socket_class *safe_class;
m_row_exists= false;
/* Protect this reader against a socket delete */
pfs->m_lock.begin_optimistic_lock(&lock);
safe_class= sanitize_socket_class(pfs->m_class);
if (unlikely(safe_class == NULL))
return;
/** Extract ip address and port from raw address */
m_row.m_ip_length= pfs_get_socket_address(m_row.m_ip, sizeof(m_row.m_ip),
&m_row.m_port,
&pfs->m_sock_addr, pfs->m_addr_len);
m_row.m_event_name= safe_class->m_name;
m_row.m_event_name_length= safe_class->m_name_length;
m_row.m_identity= pfs->m_identity;
m_row.m_fd= pfs->m_fd;
m_row.m_state= (pfs->m_idle ? PSI_SOCKET_STATE_IDLE
: PSI_SOCKET_STATE_ACTIVE);
PFS_thread *safe_thread= sanitize_thread(pfs->m_thread_owner);
if (safe_thread != NULL)
{
m_row.m_thread_id= safe_thread->m_thread_internal_id;
m_row.m_thread_id_set= true;
}
else
m_row.m_thread_id_set= false;
if (pfs->m_lock.end_optimistic_lock(&lock))
m_row_exists= true;
}
int table_socket_instances::read_row_values(TABLE *table,
unsigned char *buf,
Field **fields,
bool read_all)
{
Field *f;
if (unlikely(!m_row_exists))
return HA_ERR_RECORD_DELETED;
/* 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: /* EVENT_NAME */
set_field_varchar_utf8(f, m_row.m_event_name, m_row.m_event_name_length);
break;
case 1: /* OBJECT_INSTANCE_BEGIN */
set_field_ulonglong(f, (intptr)m_row.m_identity);
break;
case 2: /* THREAD_ID */
if (m_row.m_thread_id_set)
set_field_ulonglong(f, m_row.m_thread_id);
else
f->set_null();
break;
case 3: /* SOCKET_ID */
set_field_ulong(f, m_row.m_fd);
break;
case 4: /* IP */
set_field_varchar_utf8(f, m_row.m_ip, m_row.m_ip_length);
break;
case 5: /* PORT */
set_field_ulong(f, m_row.m_port);
break;
case 6: /* STATE */
set_field_enum(f, m_row.m_state);
break;
default:
DBUG_ASSERT(false);
}
}
}
return 0;
}
|
