diff options
Diffstat (limited to 'storage/perfschema/table_setup_actors.h')
-rw-r--r-- | storage/perfschema/table_setup_actors.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/storage/perfschema/table_setup_actors.h b/storage/perfschema/table_setup_actors.h new file mode 100644 index 00000000..758d3b22 --- /dev/null +++ b/storage/perfschema/table_setup_actors.h @@ -0,0 +1,116 @@ +/* Copyright (c) 2008, 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_SETUP_ACTORS_H +#define TABLE_SETUP_ACTORS_H + +/** + @file storage/perfschema/table_setup_actors.h + Table SETUP_ACTORS (declarations). +*/ + +#include "pfs_engine_table.h" + +struct PFS_setup_actor; + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** A row of PERFORMANCE_SCHEMA.SETUP_ACTORS. */ +struct row_setup_actors +{ + /** Column HOST. */ + char m_hostname[HOSTNAME_LENGTH]; + /** Length in bytes of @c m_hostname. */ + uint m_hostname_length; + /** Column USER. */ + char m_username[USERNAME_LENGTH]; + /** Length in bytes of @c m_username. */ + uint m_username_length; + /** Column ROLE. */ + char m_rolename[16]; + /** Length in bytes of @c m_rolename. */ + uint m_rolename_length; + /** Column ENABLED. */ + bool *m_enabled_ptr; + /** Column HISTORY. */ + bool *m_history_ptr; +}; + +/** Table PERFORMANCE_SCHEMA.SETUP_ACTORS. */ +class table_setup_actors : public PFS_engine_table +{ +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 write_row(TABLE *table, const unsigned char *buf, Field **fields); + 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); + +protected: + virtual int read_row_values(TABLE *table, + unsigned char *buf, + Field **fields, + bool read_all); + + virtual int update_row_values(TABLE *table, + const unsigned char *old_buf, + const unsigned char *new_buf, + Field **fields); + + virtual int delete_row_values(TABLE *table, + const unsigned char *buf, + Field **fields); + + table_setup_actors(); + +public: + ~table_setup_actors() + {} + +private: + void make_row(PFS_setup_actor *actor); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + + /** Current row. */ + row_setup_actors m_row; + /** True if the current row exists. */ + bool m_row_exists; + /** Current position. */ + PFS_simple_index m_pos; + /** Next position. */ + PFS_simple_index m_next_pos; +}; + +/** @} */ +#endif |