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mariadb/storage/perfschema/table_tiws_by_index_usage.cc
Sergey Vojtovich f1c1c04a34 MDEV-4262 - P_S discovery 
Discover P_S tables automatically.

Most of this patch is code clean-up:
- removed tests and code responsible for P_S tables correctness verification
- always return error from ha_perfschema::create()
- install/upgrade scripts won't create P_S tables anymore
2014-08-19 15:18:18 +04:00

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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, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/**
@file storage/perfschema/table_tiws_by_index_usage.cc
Table TABLE_IO_WAITS_SUMMARY_BY_INDEX_USAGE (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_tiws_by_index_usage.h"
#include "pfs_global.h"
#include "pfs_visitor.h"
THR_LOCK table_tiws_by_index_usage::m_table_lock;
PFS_engine_table_share
table_tiws_by_index_usage::m_share=
{
{ C_STRING_WITH_LEN("table_io_waits_summary_by_index_usage") },
&pfs_truncatable_acl,
table_tiws_by_index_usage::create,
NULL, /* write_row */
table_tiws_by_index_usage::delete_all_rows,
NULL, /* get_row_count */
1000, /* records */
sizeof(pos_tiws_by_index_usage),
&m_table_lock,
{ C_STRING_WITH_LEN("CREATE TABLE table_io_waits_summary_by_index_usage("
"OBJECT_TYPE VARCHAR(64),"
"OBJECT_SCHEMA VARCHAR(64),"
"OBJECT_NAME VARCHAR(64),"
"INDEX_NAME VARCHAR(64),"
"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,"
"COUNT_READ BIGINT unsigned not null,"
"SUM_TIMER_READ BIGINT unsigned not null,"
"MIN_TIMER_READ BIGINT unsigned not null,"
"AVG_TIMER_READ BIGINT unsigned not null,"
"MAX_TIMER_READ BIGINT unsigned not null,"
"COUNT_WRITE BIGINT unsigned not null,"
"SUM_TIMER_WRITE BIGINT unsigned not null,"
"MIN_TIMER_WRITE BIGINT unsigned not null,"
"AVG_TIMER_WRITE BIGINT unsigned not null,"
"MAX_TIMER_WRITE BIGINT unsigned not null,"
"COUNT_FETCH BIGINT unsigned not null,"
"SUM_TIMER_FETCH BIGINT unsigned not null,"
"MIN_TIMER_FETCH BIGINT unsigned not null,"
"AVG_TIMER_FETCH BIGINT unsigned not null,"
"MAX_TIMER_FETCH BIGINT unsigned not null,"
"COUNT_INSERT BIGINT unsigned not null,"
"SUM_TIMER_INSERT BIGINT unsigned not null,"
"MIN_TIMER_INSERT BIGINT unsigned not null,"
"AVG_TIMER_INSERT BIGINT unsigned not null,"
"MAX_TIMER_INSERT BIGINT unsigned not null,"
"COUNT_UPDATE BIGINT unsigned not null,"
"SUM_TIMER_UPDATE BIGINT unsigned not null,"
"MIN_TIMER_UPDATE BIGINT unsigned not null,"
"AVG_TIMER_UPDATE BIGINT unsigned not null,"
"MAX_TIMER_UPDATE BIGINT unsigned not null,"
"COUNT_DELETE BIGINT unsigned not null,"
"SUM_TIMER_DELETE BIGINT unsigned not null,"
"MIN_TIMER_DELETE BIGINT unsigned not null,"
"AVG_TIMER_DELETE BIGINT unsigned not null,"
"MAX_TIMER_DELETE BIGINT unsigned not null)") }
};
PFS_engine_table*
table_tiws_by_index_usage::create(void)
{
return new table_tiws_by_index_usage();
}
int
table_tiws_by_index_usage::delete_all_rows(void)
{
reset_table_io_waits_by_table_handle();
reset_table_io_waits_by_table();
return 0;
}
table_tiws_by_index_usage::table_tiws_by_index_usage()
: PFS_engine_table(&m_share, &m_pos),
m_row_exists(false), m_pos(), m_next_pos()
{}
void table_tiws_by_index_usage::reset_position(void)
{
m_pos.reset();
m_next_pos.reset();
}
int table_tiws_by_index_usage::rnd_init(bool scan)
{
m_normalizer= time_normalizer::get(wait_timer);
return 0;
}
int table_tiws_by_index_usage::rnd_next(void)
{
PFS_table_share *table_share;
for (m_pos.set_at(&m_next_pos);
m_pos.has_more_table();
m_pos.next_table())
{
table_share= &table_share_array[m_pos.m_index_1];
if (table_share->m_lock.is_populated())
{
uint safe_key_count= sanitize_index_count(table_share->m_key_count);
if (m_pos.m_index_2 < safe_key_count)
{
make_row(table_share, m_pos.m_index_2);
m_next_pos.set_after(&m_pos);
return 0;
}
if (m_pos.m_index_2 <= MAX_INDEXES)
{
m_pos.m_index_2= MAX_INDEXES;
make_row(table_share, m_pos.m_index_2);
m_next_pos.set_after(&m_pos);
return 0;
}
}
}
return HA_ERR_END_OF_FILE;
}
int
table_tiws_by_index_usage::rnd_pos(const void *pos)
{
PFS_table_share *table_share;
set_position(pos);
table_share= &table_share_array[m_pos.m_index_1];
if (table_share->m_lock.is_populated())
{
uint safe_key_count= sanitize_index_count(table_share->m_key_count);
if (m_pos.m_index_2 < safe_key_count)
{
make_row(table_share, m_pos.m_index_2);
return 0;
}
if (m_pos.m_index_2 == MAX_INDEXES)
{
make_row(table_share, m_pos.m_index_2);
return 0;
}
}
return HA_ERR_RECORD_DELETED;
}
void table_tiws_by_index_usage::make_row(PFS_table_share *share, uint index)
{
pfs_lock lock;
m_row_exists= false;
share->m_lock.begin_optimistic_lock(&lock);
if (m_row.m_index.make_row(share, index))
return;
PFS_index_io_stat_visitor visitor;
PFS_object_iterator::visit_table_indexes(share, index, & visitor);
if (! share->m_lock.end_optimistic_lock(&lock))
return;
m_row_exists= true;
m_row.m_stat.set(m_normalizer, & visitor.m_stat);
}
int table_tiws_by_index_usage::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: /* OBJECT_TYPE */
case 1: /* SCHEMA_NAME */
case 2: /* OBJECT_NAME */
case 3: /* INDEX_NAME */
m_row.m_index.set_field(f->field_index, f);
break;
case 4: /* COUNT_STAR */
set_field_ulonglong(f, m_row.m_stat.m_all.m_count);
break;
case 5: /* SUM */
set_field_ulonglong(f, m_row.m_stat.m_all.m_sum);
break;
case 6: /* MIN */
set_field_ulonglong(f, m_row.m_stat.m_all.m_min);
break;
case 7: /* AVG */
set_field_ulonglong(f, m_row.m_stat.m_all.m_avg);
break;
case 8: /* MAX */
set_field_ulonglong(f, m_row.m_stat.m_all.m_max);
break;
case 9: /* COUNT_READ */
set_field_ulonglong(f, m_row.m_stat.m_all_read.m_count);
break;
case 10: /* SUM_READ */
set_field_ulonglong(f, m_row.m_stat.m_all_read.m_sum);
break;
case 11: /* MIN_READ */
set_field_ulonglong(f, m_row.m_stat.m_all_read.m_min);
break;
case 12: /* AVG_READ */
set_field_ulonglong(f, m_row.m_stat.m_all_read.m_avg);
break;
case 13: /* MAX_READ */
set_field_ulonglong(f, m_row.m_stat.m_all_read.m_max);
break;
case 14: /* COUNT_WRITE */
set_field_ulonglong(f, m_row.m_stat.m_all_write.m_count);
break;
case 15: /* SUM_WRITE */
set_field_ulonglong(f, m_row.m_stat.m_all_write.m_sum);
break;
case 16: /* MIN_WRITE */
set_field_ulonglong(f, m_row.m_stat.m_all_write.m_min);
break;
case 17: /* AVG_WRITE */
set_field_ulonglong(f, m_row.m_stat.m_all_write.m_avg);
break;
case 18: /* MAX_WRITE */
set_field_ulonglong(f, m_row.m_stat.m_all_write.m_max);
break;
case 19: /* COUNT_FETCH */
set_field_ulonglong(f, m_row.m_stat.m_fetch.m_count);
break;
case 20: /* SUM_FETCH */
set_field_ulonglong(f, m_row.m_stat.m_fetch.m_sum);
break;
case 21: /* MIN_FETCH */
set_field_ulonglong(f, m_row.m_stat.m_fetch.m_min);
break;
case 22: /* AVG_FETCH */
set_field_ulonglong(f, m_row.m_stat.m_fetch.m_avg);
break;
case 23: /* MAX_FETCH */
set_field_ulonglong(f, m_row.m_stat.m_fetch.m_max);
break;
case 24: /* COUNT_INSERT */
set_field_ulonglong(f, m_row.m_stat.m_insert.m_count);
break;
case 25: /* SUM_INSERT */
set_field_ulonglong(f, m_row.m_stat.m_insert.m_sum);
break;
case 26: /* MIN_INSERT */
set_field_ulonglong(f, m_row.m_stat.m_insert.m_min);
break;
case 27: /* AVG_INSERT */
set_field_ulonglong(f, m_row.m_stat.m_insert.m_avg);
break;
case 28: /* MAX_INSERT */
set_field_ulonglong(f, m_row.m_stat.m_insert.m_max);
break;
case 29: /* COUNT_UPDATE */
set_field_ulonglong(f, m_row.m_stat.m_update.m_count);
break;
case 30: /* SUM_UPDATE */
set_field_ulonglong(f, m_row.m_stat.m_update.m_sum);
break;
case 31: /* MIN_UPDATE */
set_field_ulonglong(f, m_row.m_stat.m_update.m_min);
break;
case 32: /* AVG_UPDATE */
set_field_ulonglong(f, m_row.m_stat.m_update.m_avg);
break;
case 33: /* MAX_UPDATE */
set_field_ulonglong(f, m_row.m_stat.m_update.m_max);
break;
case 34: /* COUNT_DELETE */
set_field_ulonglong(f, m_row.m_stat.m_delete.m_count);
break;
case 35: /* SUM_DELETE */
set_field_ulonglong(f, m_row.m_stat.m_delete.m_sum);
break;
case 36: /* MIN_DELETE */
set_field_ulonglong(f, m_row.m_stat.m_delete.m_min);
break;
case 37: /* AVG_DELETE */
set_field_ulonglong(f, m_row.m_stat.m_delete.m_avg);
break;
case 38: /* MAX_DELETE */
set_field_ulonglong(f, m_row.m_stat.m_delete.m_max);
break;
default:
DBUG_ASSERT(false);
}
}
}
return 0;
}
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