97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
/* Copyright (c) 2017, 2019, 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, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, 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
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef TABLE_LOG_STATUS_H
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#define TABLE_LOG_STATUS_H
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/**
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@file storage/perfschema/table_log_status.h
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Table log_status (declarations).
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*/
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#include "sql/json_dom.h"
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#include "sql/sql_const.h"
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#include "storage/perfschema/pfs_column_types.h"
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#include "storage/perfschema/pfs_engine_table.h"
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/*
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A row in the table. The fields with string values have an additional
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length field denoted by <field_name>_length.
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*/
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struct st_row_log_status {
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char server_uuid[UUID_LENGTH];
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Json_wrapper w_local;
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Json_wrapper w_replication;
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Json_wrapper w_storage_engines;
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st_row_log_status() {}
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void cleanup() {}
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};
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/** Table PERFORMANCE_SCHEMA.LOG_STATUS. */
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class table_log_status : public PFS_engine_table {
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private:
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int make_row();
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/** Table share lock. */
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static THR_LOCK m_table_lock;
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/** Table definition. */
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static Plugin_table m_table_def;
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/** Current row */
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st_row_log_status m_row;
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/** Current position. */
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PFS_simple_index m_pos;
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/** Next position. */
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PFS_simple_index m_next_pos;
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protected:
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/**
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Read the current row values.
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@param table Table handle
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@param buf row buffer
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@param fields Table fields
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@param read_all true if all columns are read.
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*/
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virtual int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
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bool read_all);
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table_log_status();
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public:
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~table_log_status();
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/** Table share. */
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static PFS_engine_table_share m_share;
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static PFS_engine_table *create(PFS_engine_table_share *);
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static ha_rows get_row_count();
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virtual void reset_position(void);
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virtual int rnd_next();
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virtual int rnd_pos(const void *pos);
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};
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/** @} */
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#endif
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