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_sync_instances.h | 210 ++++++++++++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 storage/perfschema/table_sync_instances.h (limited to 'storage/perfschema/table_sync_instances.h') diff --git a/storage/perfschema/table_sync_instances.h b/storage/perfschema/table_sync_instances.h new file mode 100644 index 00000000..6cf8f0f3 --- /dev/null +++ b/storage/perfschema/table_sync_instances.h @@ -0,0 +1,210 @@ +/* Copyright (c) 2008, 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, Fifth Floor, Boston, MA 02110-1335 USA */ + +#ifndef TABLE_SYNC_INSTANCE_H +#define TABLE_SYNC_INSTANCE_H + +/** + @file storage/perfschema/table_sync_instances.h + Table MUTEX_INSTANCES, RWLOCK_INSTANCES and COND_INSTANCES (declarations). +*/ + +#include "pfs_column_types.h" +#include "pfs_engine_table.h" + +struct PFS_mutex; +struct PFS_rwlock; +struct PFS_cond; + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** A row of table PERFORMANCE_SCHEMA.MUTEX_INSTANCES. */ +struct row_mutex_instances +{ + /** Column NAME. */ + const char *m_name; + /** Length in bytes of @c m_name. */ + uint m_name_length; + /** Column OBJECT_INSTANCE_BEGIN. */ + const void *m_identity; + /** True if column LOCKED_BY_THREAD_ID is not null. */ + bool m_locked; + /** Column LOCKED_BY_THREAD_ID. */ + ulonglong m_locked_by_thread_id; +}; + +/** Table PERFORMANCE_SCHEMA.MUTEX_INSTANCES. */ +class table_mutex_instances : 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_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_mutex_instances(); + +public: + ~table_mutex_instances() + {} + +private: + void make_row(PFS_mutex *pfs); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + + /** Current row. */ + row_mutex_instances 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; +}; + +/** A row of table PERFORMANCE_SCHEMA.RWLOCK_INSTANCES. */ +struct row_rwlock_instances +{ + /** Column NAME. */ + const char *m_name; + /** Length in bytes of @c m_name. */ + uint m_name_length; + /** Column OBJECT_INSTANCE_BEGIN. */ + const void *m_identity; + /** True if column WRITE_LOCKED_BY_THREAD_ID is not null. */ + bool m_write_locked; + /** Column WRITE_LOCKED_BY_THREAD_ID. */ + ulonglong m_write_locked_by_thread_id; + /** Column READ_LOCKED_BY_COUNT. */ + ulong m_readers; +}; + +/** Table PERFORMANCE_SCHEMA.RWLOCK_INSTANCES. */ +class table_rwlock_instances : 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_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_rwlock_instances(); + +public: + ~table_rwlock_instances() + {} + +private: + void make_row(PFS_rwlock *pfs); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + + /** Current row. */ + row_rwlock_instances 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; +}; + +/** A row of table PERFORMANCE_SCHEMA.COND_INSTANCES. */ +struct row_cond_instances +{ + /** Column NAME. */ + const char *m_name; + /** Length in bytes of @c m_name. */ + uint m_name_length; + /** Column OBJECT_INSTANCE_BEGIN. */ + const void *m_identity; +}; + +/** Table PERFORMANCE_SCHEMA.COND_INSTANCES. */ +class table_cond_instances : 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_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_cond_instances(); + +public: + ~table_cond_instances() + {} + +private: + void make_row(PFS_cond *pfs); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + + /** Current row. */ + row_cond_instances 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 -- cgit v1.2.3