diff options
Diffstat (limited to 'storage/perfschema/table_mems_by_account_by_event_name.h')
-rw-r--r-- | storage/perfschema/table_mems_by_account_by_event_name.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/storage/perfschema/table_mems_by_account_by_event_name.h b/storage/perfschema/table_mems_by_account_by_event_name.h new file mode 100644 index 00000000..b6151246 --- /dev/null +++ b/storage/perfschema/table_mems_by_account_by_event_name.h @@ -0,0 +1,129 @@ +/* Copyright (c) 2011, 2015, 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, 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, Suite 500, Boston, MA 02110-1335 USA */ + +#ifndef TABLE_MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME_H +#define TABLE_MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME_H + +/** + @file storage/perfschema/table_mems_by_account_by_event_name.h + Table MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME (declarations). +*/ + +#include "pfs_column_types.h" +#include "pfs_engine_table.h" +#include "pfs_instr_class.h" +#include "pfs_account.h" +#include "table_helper.h" + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** A row of PERFORMANCE_SCHEMA.MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME. */ +struct row_mems_by_account_by_event_name +{ + /** Column USER, HOST. */ + PFS_account_row m_account; + /** Column EVENT_NAME. */ + PFS_event_name_row m_event_name; + /** Columns COUNT_ALLOC, ... */ + PFS_memory_stat_row m_stat; +}; + +/** + Position of a cursor on + PERFORMANCE_SCHEMA.EVENTS_MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME. + Index 1 on account (0 based) + Index 2 on memory class (1 based) +*/ +struct pos_mems_by_account_by_event_name +: public PFS_double_index +{ + pos_mems_by_account_by_event_name() + : PFS_double_index(0, 1) + {} + + inline void reset(void) + { + m_index_1= 0; + m_index_2= 1; + } + + inline void next_account(void) + { + m_index_1++; + m_index_2= 1; + } + + inline void next_class(void) + { + m_index_2++; + } +}; + +/** Table PERFORMANCE_SCHEMA.MEMORY_SUMMARY_BY_ACCOUNT_BY_EVENT_NAME. */ +class table_mems_by_account_by_event_name : public PFS_engine_table +{ +public: + /** Table share */ + static PFS_engine_table_share m_share; + static PFS_engine_table* create(); + static int delete_all_rows(); + static ha_rows get_row_count(); + + virtual int rnd_next(); + virtual int rnd_pos(const void *pos); + virtual void reset_position(void); + +private: + virtual int read_row_values(TABLE *table, + unsigned char *buf, + Field **fields, + bool read_all); + + table_mems_by_account_by_event_name(); + +public: + ~table_mems_by_account_by_event_name() + {} + +private: + void make_row(PFS_account *account, PFS_memory_class *klass); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + /** Fields definition. */ + static TABLE_FIELD_DEF m_field_def; + + /** Current row. */ + row_mems_by_account_by_event_name m_row; + /** True is the current row exists. */ + bool m_row_exists; + /** Current position. */ + pos_mems_by_account_by_event_name m_pos; + /** Next position. */ + pos_mems_by_account_by_event_name m_next_pos; +}; + +/** @} */ +#endif |