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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 Street, Fifth Floor, Boston, MA 02110-1301, USA */
#ifndef TABLE_EWS_BY_USER_BY_EVENT_NAME_H
#define TABLE_EWS_BY_USER_BY_EVENT_NAME_H
/**
@file storage/perfschema/table_ews_by_user_by_event_name.h
Table EVENTS_WAITS_SUMMARY_BY_USER_BY_EVENT_NAME (declarations).
*/
#include "pfs_column_types.h"
#include "pfs_engine_table.h"
#include "pfs_instr_class.h"
#include "pfs_instr.h"
#include "pfs_user.h"
#include "table_helper.h"
/**
@addtogroup Performance_schema_tables
@{
*/
/**
A row of table
PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_USER_BY_EVENT_NAME.
*/
struct row_ews_by_user_by_event_name
{
/** Column USER. */
PFS_user_row m_user;
/** Column EVENT_NAME. */
PFS_event_name_row m_event_name;
/** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */
PFS_stat_row m_stat;
};
/**
Position of a cursor on
PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_USER_BY_EVENT_NAME.
Index 1 on user (0 based)
Index 2 on instrument view
Index 3 on instrument class (1 based)
*/
struct pos_ews_by_user_by_event_name
: public PFS_triple_index, public PFS_instrument_view_constants
{
pos_ews_by_user_by_event_name()
: PFS_triple_index(0, FIRST_VIEW, 1)
{}
inline void reset(void)
{
m_index_1= 0;
m_index_2= FIRST_VIEW;
m_index_3= 1;
}
inline bool has_more_user(void)
{ return (m_index_1 < user_max); }
inline void next_user(void)
{
m_index_1++;
m_index_2= FIRST_VIEW;
m_index_3= 1;
}
inline bool has_more_view(void)
{ return (m_index_2 <= LAST_VIEW); }
inline void next_view(void)
{
m_index_2++;
m_index_3= 1;
}
};
/** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_USER_BY_EVENT_NAME. */
class table_ews_by_user_by_event_name : public PFS_engine_table
{
public:
/** Table share */
static PFS_engine_table_share m_share;
static PFS_engine_table* create();
static int delete_all_rows();
virtual int rnd_next();
virtual int rnd_pos(const void *pos);
virtual void reset_position(void);
protected:
virtual int read_row_values(TABLE *table,
unsigned char *buf,
Field **fields,
bool read_all);
table_ews_by_user_by_event_name();
public:
~table_ews_by_user_by_event_name()
{}
protected:
void make_row(PFS_user *user, PFS_instr_class *klass);
private:
/** Table share lock. */
static THR_LOCK m_table_lock;
/** Fields definition. */
static TABLE_FIELD_DEF m_field_def;
/** Current row. */
row_ews_by_user_by_event_name m_row;
/** True is the current row exists. */
bool m_row_exists;
/** Current position. */
pos_ews_by_user_by_event_name m_pos;
/** Next position. */
pos_ews_by_user_by_event_name m_next_pos;
};
/** @} */
#endif
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