/* Copyright (c) 2011, 2023, Oracle and/or its affiliates.
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, Suite 500, Boston, MA 02110-1335 USA */
#ifndef TABLE_MEMORY_SUMMARY_GLOBAL_BY_EVENT_NAME_H
#define TABLE_MEMORY_SUMMARY_GLOBAL_BY_EVENT_NAME_H
/**
@ file storage / perfschema / table_mems_global_by_event_name . h
Table MEMORY_SUMMARY_GLOBAL_BY_EVENT_NAME ( declarations ) .
*/
#include "pfs_column_types.h"
#include "pfs_engine_table.h"
#include "pfs_instr_class.h"
#include "pfs_builtin_memory.h"
#include "table_helper.h"
/**
@ addtogroup Performance_schema_tables
@ {
*/
/** A row of PERFORMANCE_SCHEMA.MEMORY_SUMMARY_GLOBAL_BY_EVENT_NAME. */
struct row_mems_global_by_event_name
{
/** Column EVENT_NAME. */
PFS_event_name_row m_event_name;
/** Columns COUNT_ALLOC, ... */
PFS_memory_stat_row m_stat;
};
/**
Position of a cursor on
PERFORMANCE_SCHEMA . MEMORY_SUMMARY_GLOBAL_BY_EVENT_NAME .
Index 1 on view
Index 2 on instrument key ( 1 based )
*/
struct pos_mems_global_by_event_name : public PFS_double_index
{
static const uint FIRST_VIEW= 1 ;
static const uint VIEW_BUILTIN_MEMORY= 1 ;
static const uint VIEW_MEMORY= 2 ;
static const uint LAST_VIEW= 2 ;
pos_mems_global_by_event_name()
: PFS_double_index(FIRST_VIEW, 1 )
{}
inline void reset(void )
{
m_index_1= FIRST_VIEW;
m_index_2= 1 ;
}
inline bool has_more_view(void )
{ return (m_index_1 <= LAST_VIEW); }
inline void next_view(void )
{
m_index_1++;
m_index_2= 1 ;
}
};
/** Table PERFORMANCE_SCHEMA.MEMORY_SUMMARY_GLOBAL_BY_EVENT_NAME. */
class table_mems_global_by_event_name : public PFS_engine_table
{
typedef pos_mems_global_by_event_name pos_t;
public :
static PFS_engine_table_share_state m_share_state;
/** Table share */
static PFS_engine_table_share m_share;
static PFS_engine_table* create();
static int delete_all_rows();
static ha_rows get_row_count();
int rnd_next() override;
int rnd_pos(const void *pos) override;
void reset_position(void ) override;
private :
int read_row_values(TABLE *table,
unsigned char *buf,
Field **fields,
bool read_all) override;
table_mems_global_by_event_name();
public :
~table_mems_global_by_event_name()
{}
private :
void make_row(PFS_builtin_memory_class *klass);
void make_row(PFS_memory_class *klass);
/** Table share lock. */
static THR_LOCK m_table_lock;
/** Fields definition. */
static TABLE_FIELD_DEF m_field_def;
/** Current row. */
row_mems_global_by_event_name m_row;
/** True is the current row exists. */
bool m_row_exists;
/** Current position. */
pos_t m_pos;
/** Next position. */
pos_t m_next_pos;
};
/** @} */
#endif
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