From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:07:14 +0200 Subject: Adding upstream version 1:10.5.12. Signed-off-by: Daniel Baumann --- storage/perfschema/table_table_handles.h | 108 +++++++++++++++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 storage/perfschema/table_table_handles.h (limited to 'storage/perfschema/table_table_handles.h') diff --git a/storage/perfschema/table_table_handles.h b/storage/perfschema/table_table_handles.h new file mode 100644 index 00000000..0f1f76f4 --- /dev/null +++ b/storage/perfschema/table_table_handles.h @@ -0,0 +1,108 @@ +/* Copyright (c) 2012, 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, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ + +#ifndef TABLE_TABLE_HANDLES_H +#define TABLE_TABLE_HANDLES_H + +/** + @file storage/perfschema/table_table_handles.h + Table TABLE_HANDLES (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_HANDLES. +*/ +struct row_table_handles +{ + /** Column OBJECT_TYPE, SCHEMA_NAME, OBJECT_NAME. */ + PFS_object_row m_object; + /** Column OBJECT_INSTANCE_BEGIN. */ + const void *m_identity; + /** Column OWNER_THREAD_ID. */ + ulonglong m_owner_thread_id; + /** Column OWNER_EVENT_ID. */ + ulonglong m_owner_event_id; + /** Column INTERNAL_LOCK. */ + PFS_TL_LOCK_TYPE m_internal_lock; + /** Column EXTERNAL_LOCK. */ + PFS_TL_LOCK_TYPE m_external_lock; +}; + +/** Table PERFORMANCE_SCHEMA.TABLE_HANDLES. */ +class table_table_handles : public PFS_engine_table +{ +public: + /** Table share */ + static PFS_engine_table_share m_share; + static PFS_engine_table* create(); + static ha_rows get_row_count(); + + 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_table_handles(); + +public: + ~table_table_handles() + {} + +protected: + void make_row(PFS_table *table); + +private: + /** Table share lock. */ + static THR_LOCK m_table_lock; + /** Fields definition. */ + static TABLE_FIELD_DEF m_field_def; + + /** Current row. */ + row_table_handles 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 -- cgit v1.2.3