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+/* 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