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/* 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef CURSOR_BY_HOST_H
#define CURSOR_BY_HOST_H
/**
@file storage/perfschema/cursor_by_host.h
Cursor CURSOR_BY_HOST (declarations).
*/
#include "pfs_engine_table.h"
#include "pfs_host.h"
#include "table_helper.h"
/**
@addtogroup Performance_schema_tables
@{
*/
/** Cursor CURSOR_BY_HOST. */
class cursor_by_host : public PFS_engine_table
{
public:
static ha_rows get_row_count();
virtual int rnd_next();
virtual int rnd_pos(const void *pos);
virtual void reset_position(void);
protected:
cursor_by_host(const PFS_engine_table_share *share);
public:
~cursor_by_host() = default;
protected:
virtual void make_row(PFS_host *host)= 0;
private:
/** Current position. */
PFS_simple_index m_pos;
/** Next position. */
PFS_simple_index m_next_pos;
};
/** @} */
#endif
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