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122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
/* Copyright (c) 2008 MySQL AB, 2010 Sun Microsystems, Inc.
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Use is subject to license terms.
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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_SETUP_INSTRUMENTS_H
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#define TABLE_SETUP_INSTRUMENTS_H
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/**
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@file storage/perfschema/table_setup_instruments.h
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Table SETUP_INSTRUMENTS (declarations).
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*/
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#include "pfs_instr_class.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.SETUP_INSTRUMENTS. */
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struct row_setup_instruments
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{
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/** Column NAME. */
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const char *m_name;
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/** Length in bytes of @c m_name. */
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uint m_name_length;
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/** Column ENABLED. */
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bool *m_enabled_ptr;
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/** Column TIMED. */
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bool *m_timed_ptr;
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};
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/** Position of a cursor on PERFORMANCE_SCHEMA.SETUP_INSTRUMENTS. */
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struct pos_setup_instruments : public PFS_double_index
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{
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static const uint VIEW_MUTEX= 1;
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static const uint VIEW_RWLOCK= 2;
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static const uint VIEW_COND= 3;
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/** Reverved for WL#4674, PERFORMANCE_SCHEMA Setup For Actors. */
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static const uint VIEW_THREAD= 4;
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static const uint VIEW_FILE= 5;
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pos_setup_instruments()
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: PFS_double_index(VIEW_MUTEX, 1)
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{}
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inline void reset(void)
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{
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m_index_1= VIEW_MUTEX;
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m_index_2= 1;
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}
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inline bool has_more_view(void)
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{ return (m_index_1 <= VIEW_FILE); }
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inline void next_view(void)
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{
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m_index_1++;
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m_index_2= 1;
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}
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};
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/** Table PERFORMANCE_SCHEMA.SETUP_INSTRUMENTS. */
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class table_setup_instruments : 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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virtual int update_row_values(TABLE *table,
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const unsigned char *old_buf,
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unsigned char *new_buf,
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Field **fields);
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table_setup_instruments();
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public:
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~table_setup_instruments()
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{}
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private:
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void make_row(PFS_instr_class *klass);
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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_setup_instruments m_row;
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/** Current position. */
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pos_setup_instruments m_pos;
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/** Next position. */
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pos_setup_instruments m_next_pos;
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};
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/** @} */
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#endif
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