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Diffstat (limited to 'storage/perfschema/table_tiws_by_table.h')
-rw-r--r-- | storage/perfschema/table_tiws_by_table.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/storage/perfschema/table_tiws_by_table.h b/storage/perfschema/table_tiws_by_table.h new file mode 100644 index 00000000000..747b1958c8e --- /dev/null +++ b/storage/perfschema/table_tiws_by_table.h @@ -0,0 +1,93 @@ +/* Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + 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 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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#ifndef TABLE_IO_WAITS_SUMMARY_BY_TABLE_H +#define TABLE_IO_WAITS_SUMMARY_BY_TABLE_H + +/** + @file storage/perfschema/table_tiws_by_table.h + Table TABLE_IO_WAITS_SUMMARY_BY_TABLE (declarations). +*/ + +#include "pfs_column_types.h" +#include "pfs_engine_table.h" +#include "pfs_instr_class.h" +#include "pfs_instr.h" +#include "table_helper.h" + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** + A row of table + PERFORMANCE_SCHEMA.TABLE_IO_WAITS_SUMMARY_BY_TABLE. +*/ +struct row_tiws_by_table +{ + /** Column OBJECT_TYPE, SCHEMA_NAME, OBJECT_NAME. */ + PFS_object_row m_object; + /** Columns COUNT/SUM/MIN/AVG/MAX (+_READ, +WRITE). */ + PFS_table_io_stat_row m_stat; +}; + +/** Table PERFORMANCE_SCHEMA.TABLE_IO_WAITS_SUMMARY_BY_TABLE. */ +class table_tiws_by_table : public PFS_engine_table +{ +public: + /** Table share */ + static PFS_engine_table_share m_share; + static PFS_engine_table* create(); + static int delete_all_rows(); + + virtual int rnd_init(bool scan); + 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); + + table_tiws_by_table(); + +public: + ~table_tiws_by_table() + {} + +protected: + void make_row(PFS_table_share *table_share); + +private: + /** Table share lock. */ + static THR_LOCK m_table_lock; + /** Fields definition. */ + static TABLE_FIELD_DEF m_field_def; + + /** Current row. */ + row_tiws_by_table m_row; + /** True is the current row exists. */ + bool m_row_exists; + /** Current position. */ + PFS_simple_index m_pos; + /** Next position. */ + PFS_simple_index m_next_pos; +}; + +/** @} */ +#endif |