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+/* Copyright (c) 2008, 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,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#ifndef TABLE_PERFORMANCE_TIMERS_H
+#define TABLE_PERFORMANCE_TIMERS_H
+
+/**
+ @file storage/perfschema/table_performance_timers.h
+ Table PERFORMANCE_TIMERS (declarations).
+*/
+
+#include <my_rdtsc.h>
+#include "pfs_column_types.h"
+#include "pfs_engine_table.h"
+
+/**
+ @addtogroup Performance_schema_tables
+ @{
+*/
+
+/** A row of PERFORMANCE_SCHEMA.PERFORMANCE_TIMERS. */
+struct row_performance_timers
+{
+ /** Column TIMER_NAME. */
+ enum_timer_name m_timer_name;
+ /**
+ Columns ROUTINE (not displayed), TIMER_OVERHEAD,
+ TIMER_FREQUENCY, TIMER_RESOLUTION.
+ */
+ struct my_timer_unit_info m_info;
+};
+
+/** Table PERFORMANCE_SCHEMA.PERFORMANCE_TIMERS. */
+class table_performance_timers : public PFS_engine_table
+{
+public:
+ static PFS_engine_table_share_state m_share_state;
+ /** Table share. */
+ static PFS_engine_table_share m_share;
+ static PFS_engine_table* create();
+ static ha_rows get_row_count();
+
+ virtual int rnd_next();
+ virtual int rnd_pos(const void *pos);
+ virtual void reset_position(void);
+
+protected:
+ virtual int read_row_values(TABLE *table,
+ unsigned char *buf,
+ Field **fields,
+ bool read_all);
+
+protected:
+ table_performance_timers();
+
+public:
+ ~table_performance_timers() = default;
+
+private:
+ /** Table share lock. */
+ static THR_LOCK m_table_lock;
+
+ /** Current row. */
+ row_performance_timers *m_row;
+ /** Current position. */
+ PFS_simple_index m_pos;
+ /** Next position. */
+ PFS_simple_index m_next_pos;
+ row_performance_timers m_data[COUNT_TIMER_NAME];
+};
+
+/** @} */
+#endif