diff options
Diffstat (limited to '')
-rw-r--r-- | storage/perfschema/table_users.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/storage/perfschema/table_users.h b/storage/perfschema/table_users.h new file mode 100644 index 00000000..2adc7756 --- /dev/null +++ b/storage/perfschema/table_users.h @@ -0,0 +1,86 @@ +/* Copyright (c) 2011, 2022, 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_USERS_H +#define TABLE_USERS_H + +#include "pfs_column_types.h" +#include "cursor_by_user.h" +#include "table_helper.h" + +struct PFS_user; + +/** + \addtogroup Performance_schema_tables + @{ +*/ + +/** + A row of PERFORMANCE_SCHEMA.USERS. +*/ +struct row_users +{ + /** Column USER. */ + PFS_user_row m_user; + /** Columns CURRENT_CONNECTIONS, TOTAL_CONNECTIONS. */ + PFS_connection_stat_row m_connection_stat; +}; + +/** Table PERFORMANCE_SCHEMA.USERS. */ +class table_users : public cursor_by_user +{ +public: + static PFS_engine_table_share_state m_share_state; + /** Table share */ + static PFS_engine_table_share m_share; + /** Table builder */ + static PFS_engine_table* create(); + static int delete_all_rows(); + +protected: + virtual int read_row_values(TABLE *table, + unsigned char *buf, + Field **fields, + bool read_all); + + +protected: + table_users(); + +public: + ~table_users() + {} + +private: + virtual void make_row(PFS_user *pfs); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + + /** Current row. */ + row_users m_row; + /** True if the current row exists. */ + bool m_row_exists; +}; + +/** @} */ +#endif |