86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
/* Copyright (c) 2011, 2019, 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, 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, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef CURSOR_BY_ACCOUNT_H
|
|
#define CURSOR_BY_ACCOUNT_H
|
|
|
|
/**
|
|
@file storage/perfschema/cursor_by_account.h
|
|
Cursor CURSOR_BY_ACCOUNT (declarations).
|
|
*/
|
|
|
|
#include "storage/perfschema/pfs_account.h"
|
|
#include "storage/perfschema/pfs_engine_table.h"
|
|
#include "storage/perfschema/table_helper.h"
|
|
|
|
/**
|
|
@addtogroup performance_schema_tables
|
|
@{
|
|
*/
|
|
|
|
class PFS_index_accounts : public PFS_engine_index {
|
|
public:
|
|
PFS_index_accounts(PFS_engine_key *key_1) : PFS_engine_index(key_1) {}
|
|
|
|
PFS_index_accounts(PFS_engine_key *key_1, PFS_engine_key *key_2)
|
|
: PFS_engine_index(key_1, key_2) {}
|
|
|
|
virtual ~PFS_index_accounts() {}
|
|
|
|
virtual bool match(PFS_account *pfs) = 0;
|
|
};
|
|
|
|
/** Cursor CURSOR_BY_ACCOUNT. */
|
|
class cursor_by_account : public PFS_engine_table {
|
|
public:
|
|
static ha_rows get_row_count();
|
|
|
|
virtual void reset_position(void);
|
|
|
|
virtual int rnd_next();
|
|
virtual int rnd_pos(const void *pos);
|
|
|
|
virtual int index_next();
|
|
|
|
protected:
|
|
cursor_by_account(const PFS_engine_table_share *share);
|
|
|
|
public:
|
|
~cursor_by_account() {}
|
|
|
|
protected:
|
|
virtual int make_row(PFS_account *account) = 0;
|
|
|
|
private:
|
|
/** Current position. */
|
|
PFS_simple_index m_pos;
|
|
/** Next position. */
|
|
PFS_simple_index m_next_pos;
|
|
|
|
protected:
|
|
PFS_index_accounts *m_opened_index;
|
|
};
|
|
|
|
/** @} */
|
|
#endif
|