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f1c1c04a34
Discover P_S tables automatically. Most of this patch is code clean-up: - removed tests and code responsible for P_S tables correctness verification - always return error from ha_perfschema::create() - install/upgrade scripts won't create P_S tables anymore
78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
/* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
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#ifndef TABLE_HOSTS_H
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#define TABLE_HOSTS_H
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#include "pfs_column_types.h"
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#include "cursor_by_host.h"
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#include "table_helper.h"
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struct PFS_host;
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/**
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\addtogroup Performance_schema_tables
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@{
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*/
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/**
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A row of PERFORMANCE_SCHEMA.HOSTS.
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*/
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struct row_hosts
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{
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/** Column HOST. */
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PFS_host_row m_host;
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/** Columns CURRENT_CONNECTIONS, TOTAL_CONNECTIONS. */
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PFS_connection_stat_row m_connection_stat;
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};
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/** Table PERFORMANCE_SCHEMA.THREADS. */
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class table_hosts : public cursor_by_host
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{
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public:
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/** Table share */
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static PFS_engine_table_share m_share;
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/** Table builder */
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static PFS_engine_table* create();
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static int delete_all_rows();
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protected:
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virtual int read_row_values(TABLE *table,
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unsigned char *buf,
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Field **fields,
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bool read_all);
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protected:
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table_hosts();
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public:
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~table_hosts()
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{}
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private:
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virtual void make_row(PFS_host *pfs);
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/** Table share lock. */
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static THR_LOCK m_table_lock;
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/** Current row. */
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row_hosts m_row;
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/** True if the current row exists. */
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bool m_row_exists;
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};
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/** @} */
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#endif
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