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/* Copyright (c) 2008, 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, Suite 500, Boston, MA 02110-1335 USA */
/**
@file storage/perfschema/table_setup_timers.cc
Table SETUP_TIMERS (implementation).
*/
#include "my_global.h"
#include "my_pthread.h"
#include "table_setup_timers.h"
#include "pfs_column_values.h"
#include "pfs_timer.h"
#define COUNT_SETUP_TIMERS 4
static row_setup_timers all_setup_timers_data[COUNT_SETUP_TIMERS]=
{
{
{ C_STRING_WITH_LEN("idle") },
&idle_timer
},
{
{ C_STRING_WITH_LEN("wait") },
&wait_timer
},
{
{ C_STRING_WITH_LEN("stage") },
&stage_timer
},
{
{ C_STRING_WITH_LEN("statement") },
&statement_timer
}
};
THR_LOCK table_setup_timers::m_table_lock;
PFS_engine_table_share
table_setup_timers::m_share=
{
{ C_STRING_WITH_LEN("setup_timers") },
&pfs_updatable_acl,
&table_setup_timers::create,
NULL, /* write_row */
NULL, /* delete_all_rows */
NULL, /* get_row_count */
COUNT_SETUP_TIMERS,
sizeof(PFS_simple_index),
&m_table_lock,
{ C_STRING_WITH_LEN("CREATE TABLE setup_timers("
"NAME VARCHAR(64) not null,"
"TIMER_NAME ENUM ('CYCLE', 'NANOSECOND', 'MICROSECOND', 'MILLISECOND', 'TICK') not null)") }
};
PFS_engine_table* table_setup_timers::create(void)
{
return new table_setup_timers();
}
table_setup_timers::table_setup_timers()
: PFS_engine_table(&m_share, &m_pos),
m_row(NULL), m_pos(0), m_next_pos(0)
{}
void table_setup_timers::reset_position(void)
{
m_pos.m_index= 0;
m_next_pos.m_index= 0;
}
int table_setup_timers::rnd_next(void)
{
int result;
m_pos.set_at(&m_next_pos);
if (m_pos.m_index < COUNT_SETUP_TIMERS)
{
m_row= &all_setup_timers_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_setup_timers::rnd_pos(const void *pos)
{
set_position(pos);
DBUG_ASSERT(m_pos.m_index < COUNT_SETUP_TIMERS);
m_row= &all_setup_timers_data[m_pos.m_index];
return 0;
}
int table_setup_timers::read_row_values(TABLE *table,
unsigned char *,
Field **fields,
bool read_all)
{
Field *f;
DBUG_ASSERT(m_row);
/* 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: /* NAME */
set_field_varchar_utf8(f, m_row->m_name.str,(uint) m_row->m_name.length);
break;
case 1: /* TIMER_NAME */
set_field_enum(f, *(m_row->m_timer_name_ptr));
break;
default:
DBUG_ASSERT(false);
}
}
}
return 0;
}
int table_setup_timers::update_row_values(TABLE *table,
const unsigned char *,
const unsigned char *,
Field **fields)
{
Field *f;
longlong value;
DBUG_ASSERT(m_row);
for (; (f= *fields) ; fields++)
{
if (bitmap_is_set(table->write_set, f->field_index))
{
switch(f->field_index)
{
case 0: /* NAME */
return HA_ERR_WRONG_COMMAND;
case 1: /* TIMER_NAME */
value= get_field_enum(f);
if ((value >= FIRST_TIMER_NAME) && (value <= LAST_TIMER_NAME))
*(m_row->m_timer_name_ptr)= (enum_timer_name) value;
else
return HA_ERR_WRONG_COMMAND;
break;
default:
DBUG_ASSERT(false);
}
}
}
return 0;
}
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