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mariadb/storage/perfschema/table_ews_global_by_event_name.cc
Vicențiu Ciorbaru f177f125d4 Merge branch '5.5' into 10.1
2019-05-11 19:15:57 +03:00

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/* Copyright (c) 2010, 2011, 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, Fifth Floor, Boston, MA 02110-1335 USA */
/**
@file storage/perfschema/table_ews_global_by_event_name.cc
Table EVENTS_WAITS_SUMMARY_GLOBAL_BY_EVENT_NAME (implementation).
*/
#include "my_global.h"
#include "my_pthread.h"
#include "pfs_instr_class.h"
#include "pfs_column_types.h"
#include "pfs_column_values.h"
#include "table_ews_global_by_event_name.h"
#include "pfs_global.h"
#include "pfs_instr.h"
#include "pfs_timer.h"
#include "pfs_visitor.h"
THR_LOCK table_ews_global_by_event_name::m_table_lock;
PFS_engine_table_share
table_ews_global_by_event_name::m_share=
{
{ C_STRING_WITH_LEN("events_waits_summary_global_by_event_name") },
&pfs_truncatable_acl,
table_ews_global_by_event_name::create,
NULL, /* write_row */
table_ews_global_by_event_name::delete_all_rows,
NULL, /* get_row_count */
1000, /* records */
sizeof(pos_ews_global_by_event_name),
&m_table_lock,
{ C_STRING_WITH_LEN("CREATE TABLE events_waits_summary_global_by_event_name("
"EVENT_NAME VARCHAR(128) not null,"
"COUNT_STAR BIGINT unsigned not null,"
"SUM_TIMER_WAIT BIGINT unsigned not null,"
"MIN_TIMER_WAIT BIGINT unsigned not null,"
"AVG_TIMER_WAIT BIGINT unsigned not null,"
"MAX_TIMER_WAIT BIGINT unsigned not null)") }
};
PFS_engine_table*
table_ews_global_by_event_name::create(void)
{
return new table_ews_global_by_event_name();
}
int
table_ews_global_by_event_name::delete_all_rows(void)
{
reset_events_waits_by_instance();
reset_table_waits_by_table_handle();
reset_table_waits_by_table();
reset_events_waits_by_class();
return 0;
}
table_ews_global_by_event_name::table_ews_global_by_event_name()
: PFS_engine_table(&m_share, &m_pos),
m_row_exists(false), m_pos(), m_next_pos()
{}
void table_ews_global_by_event_name::reset_position(void)
{
m_pos.reset();
m_next_pos.reset();
}
int table_ews_global_by_event_name::rnd_next(void)
{
PFS_mutex_class *mutex_class;
PFS_rwlock_class *rwlock_class;
PFS_cond_class *cond_class;
PFS_file_class *file_class;
PFS_socket_class *socket_class;
PFS_instr_class *instr_class;
for (m_pos.set_at(&m_next_pos);
m_pos.has_more_view();
m_pos.next_view())
{
switch (m_pos.m_index_1)
{
case pos_ews_global_by_event_name::VIEW_MUTEX:
mutex_class= find_mutex_class(m_pos.m_index_2);
if (mutex_class)
{
make_mutex_row(mutex_class);
m_next_pos.set_after(&m_pos);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_RWLOCK:
rwlock_class= find_rwlock_class(m_pos.m_index_2);
if (rwlock_class)
{
make_rwlock_row(rwlock_class);
m_next_pos.set_after(&m_pos);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_COND:
cond_class= find_cond_class(m_pos.m_index_2);
if (cond_class)
{
make_cond_row(cond_class);
m_next_pos.set_after(&m_pos);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_FILE:
file_class= find_file_class(m_pos.m_index_2);
if (file_class)
{
make_file_row(file_class);
m_next_pos.set_after(&m_pos);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_TABLE:
if (m_pos.m_index_2 == 1)
{
make_table_io_row(&global_table_io_class);
m_next_pos.set_after(&m_pos);
return 0;
}
if (m_pos.m_index_2 == 2)
{
make_table_lock_row(&global_table_lock_class);
m_next_pos.set_after(&m_pos);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_SOCKET:
socket_class= find_socket_class(m_pos.m_index_2);
if (socket_class)
{
make_socket_row(socket_class);
m_next_pos.set_after(&m_pos);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_IDLE:
instr_class= find_idle_class(m_pos.m_index_2);
if (instr_class)
{
make_idle_row(instr_class);
m_next_pos.set_after(&m_pos);
return 0;
}
break;
default:
break;
}
}
return HA_ERR_END_OF_FILE;
}
int
table_ews_global_by_event_name::rnd_pos(const void *pos)
{
PFS_mutex_class *mutex_class;
PFS_rwlock_class *rwlock_class;
PFS_cond_class *cond_class;
PFS_file_class *file_class;
PFS_socket_class *socket_class;
PFS_instr_class *instr_class;
set_position(pos);
switch (m_pos.m_index_1)
{
case pos_ews_global_by_event_name::VIEW_MUTEX:
mutex_class= find_mutex_class(m_pos.m_index_2);
if (mutex_class)
{
make_mutex_row(mutex_class);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_RWLOCK:
rwlock_class= find_rwlock_class(m_pos.m_index_2);
if (rwlock_class)
{
make_rwlock_row(rwlock_class);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_COND:
cond_class= find_cond_class(m_pos.m_index_2);
if (cond_class)
{
make_cond_row(cond_class);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_FILE:
file_class= find_file_class(m_pos.m_index_2);
if (file_class)
{
make_file_row(file_class);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_TABLE:
DBUG_ASSERT(m_pos.m_index_2 >= 1);
DBUG_ASSERT(m_pos.m_index_2 <= 2);
if (m_pos.m_index_2 == 1)
make_table_io_row(&global_table_io_class);
else
make_table_lock_row(&global_table_lock_class);
break;
case pos_ews_global_by_event_name::VIEW_SOCKET:
socket_class= find_socket_class(m_pos.m_index_2);
if (socket_class)
{
make_socket_row(socket_class);
return 0;
}
break;
case pos_ews_global_by_event_name::VIEW_IDLE:
instr_class= find_idle_class(m_pos.m_index_2);
if (instr_class)
{
make_idle_row(instr_class);
return 0;
}
break;
}
return HA_ERR_RECORD_DELETED;
}
void table_ews_global_by_event_name
::make_mutex_row(PFS_mutex_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_instance_wait_visitor visitor;
PFS_instance_iterator::visit_mutex_instances(klass, & visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, & visitor.m_stat);
m_row_exists= true;
}
void table_ews_global_by_event_name
::make_rwlock_row(PFS_rwlock_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_instance_wait_visitor visitor;
PFS_instance_iterator::visit_rwlock_instances(klass, & visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, & visitor.m_stat);
m_row_exists= true;
}
void table_ews_global_by_event_name
::make_cond_row(PFS_cond_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_instance_wait_visitor visitor;
PFS_instance_iterator::visit_cond_instances(klass, & visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, & visitor.m_stat);
m_row_exists= true;
}
void table_ews_global_by_event_name
::make_file_row(PFS_file_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_instance_wait_visitor visitor;
PFS_instance_iterator::visit_file_instances(klass, & visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, & visitor.m_stat);
m_row_exists= true;
}
void table_ews_global_by_event_name
::make_table_io_row(PFS_instr_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_table_io_wait_visitor visitor;
PFS_object_iterator::visit_all_tables(& visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, & visitor.m_stat);
m_row_exists= true;
}
void table_ews_global_by_event_name
::make_table_lock_row(PFS_instr_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_table_lock_wait_visitor visitor;
PFS_object_iterator::visit_all_tables(& visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, & visitor.m_stat);
m_row_exists= true;
}
void table_ews_global_by_event_name
::make_socket_row(PFS_socket_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_instance_wait_visitor visitor;
PFS_instance_iterator::visit_socket_instances(klass, &visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, &visitor.m_stat);
m_row_exists= true;
}
void table_ews_global_by_event_name
::make_idle_row(PFS_instr_class *klass)
{
m_row.m_event_name.make_row(klass);
PFS_connection_wait_visitor visitor(klass);
PFS_connection_iterator::visit_global(false, /* hosts */
false, /* users */
false, /* accts */
true, /* threads */ &visitor);
get_normalizer(klass);
m_row.m_stat.set(m_normalizer, &visitor.m_stat);
m_row_exists= true;
}
int table_ews_global_by_event_name
::read_row_values(TABLE *table, unsigned char *, 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 == 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 */
m_row.m_event_name.set_field(f);
break;
default: /* 1, ... COUNT/SUM/MIN/AVG/MAX */
m_row.m_stat.set_field(f->field_index - 1, f);
break;
}
}
}
return 0;
}
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