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86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
/* Copyright (c) 2008, 2010, 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_PERFORMANCE_TIMERS_H
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#define TABLE_PERFORMANCE_TIMERS_H
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/**
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@file storage/perfschema/table_performance_timers.h
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Table PERFORMANCE_TIMERS (declarations).
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*/
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#include <my_rdtsc.h>
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#include "pfs_column_types.h"
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#include "pfs_engine_table.h"
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/**
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@addtogroup Performance_schema_tables
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@{
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*/
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/** A row of PERFORMANCE_SCHEMA.PERFORMANCE_TIMERS. */
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struct row_performance_timers
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{
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/** Column TIMER_NAME. */
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enum_timer_name m_timer_name;
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/**
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Columns ROUTINE (not displayed), TIMER_OVERHEAD,
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TIMER_FREQUENCY, TIMER_RESOLUTION.
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*/
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struct my_timer_unit_info m_info;
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};
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/** Table PERFORMANCE_SCHEMA.PERFORMANCE_TIMERS. */
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class table_performance_timers : public PFS_engine_table
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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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static PFS_engine_table* create();
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virtual int rnd_next();
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virtual int rnd_pos(const void *pos);
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virtual void reset_position(void);
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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_performance_timers();
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public:
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~table_performance_timers()
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{}
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private:
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/** Table share lock. */
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static THR_LOCK m_table_lock;
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/** Fields definition. */
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static TABLE_FIELD_DEF m_field_def;
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/** Current row. */
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row_performance_timers *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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row_performance_timers m_data[COUNT_TIMER_NAME];
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};
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/** @} */
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#endif
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