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Diffstat (limited to 'storage/perfschema/table_os_global_by_type.h')
-rw-r--r-- | storage/perfschema/table_os_global_by_type.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/storage/perfschema/table_os_global_by_type.h b/storage/perfschema/table_os_global_by_type.h new file mode 100644 index 00000000000..585bf6bbca5 --- /dev/null +++ b/storage/perfschema/table_os_global_by_type.h @@ -0,0 +1,130 @@ +/* Copyright (c) 2010, 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_OBJECTS_SUMMARY_GLOBAL_BY_TYPE_H +#define TABLE_OBJECTS_SUMMARY_GLOBAL_BY_TYPE_H + +/** + @file storage/perfschema/table_os_global_by_type.h + Table OBJECTS_SUMMARY_GLOBAL_BY_TYPE (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.OBJECTS_SUMMARY_GLOBAL_BY_TYPE. +*/ +struct row_os_global_by_type +{ + /** Column OBJECT_TYPE. */ + enum_object_type m_object_type; + /** Column SCHEMA_NAME. */ + char m_schema_name[NAME_LEN]; + /** Length in bytes of @c m_schema_name. */ + uint m_schema_name_length; + /** Column OBJECT_NAME. */ + char m_object_name[NAME_LEN]; + /** Length in bytes of @c m_object_name. */ + uint m_object_name_length; + /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */ + PFS_stat_row m_stat; +}; + +/** + Position of a cursor on + PERFORMANCE_SCHEMA.OBJECTS_SUMMARY_GLOBAL_BY_TYPE. + Index 1 on object type + Index 2 on object instance (0 based) +*/ +struct pos_os_global_by_type : public PFS_double_index, + public PFS_object_view_constants +{ + pos_os_global_by_type() + : PFS_double_index(FIRST_VIEW, 0) + {} + + inline void reset(void) + { + m_index_1= FIRST_VIEW; + m_index_2= 0; + } + + inline bool has_more_view(void) + { return (m_index_1 <= LAST_VIEW); } + + inline void next_view(void) + { + m_index_1++; + m_index_2= 0; + } +}; + +/** Table PERFORMANCE_SCHEMA.OBJECTS_SUMMARY_GLOBAL_BY_TYPE. */ +class table_os_global_by_type : 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_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_os_global_by_type(); + +public: + ~table_os_global_by_type() + {} + +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_os_global_by_type m_row; + /** True is the current row exists. */ + bool m_row_exists; + /** Current position. */ + pos_os_global_by_type m_pos; + /** Next position. */ + pos_os_global_by_type m_next_pos; +}; + + +/** @} */ +#endif |