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f1c1c04a34
Discover P_S tables automatically. Most of this patch is code clean-up: - removed tests and code responsible for P_S tables correctness verification - always return error from ha_perfschema::create() - install/upgrade scripts won't create P_S tables anymore
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
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#ifndef TABLE_SESSION_CONNECT_H
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#define TABLE_SESSION_CONNECT_H
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#include "pfs_column_types.h"
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#include "cursor_by_thread_connect_attr.h"
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#include "table_helper.h"
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#define MAX_ATTR_NAME_CHARS 32
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#define MAX_ATTR_VALUE_CHARS 1024
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#define MAX_UTF8_BYTES 6
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/** symbolic names for field offsets, keep in sync with field_types */
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enum field_offsets {
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FO_PROCESS_ID,
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FO_ATTR_NAME,
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FO_ATTR_VALUE,
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FO_ORDINAL_POSITION
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};
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/**
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A row of PERFORMANCE_SCHEMA.SESSION_CONNECT_ATTRS and
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PERFORMANCE_SCHEMA.SESSION_ACCOUNT_CONNECT_ATTRS.
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*/
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struct row_session_connect_attrs
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{
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/** Column PROCESS_ID. */
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ulong m_process_id;
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/** Column ATTR_NAME. In UTF-8 */
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char m_attr_name[MAX_ATTR_NAME_CHARS * MAX_UTF8_BYTES];
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/** Length in bytes of @c m_attr_name. */
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uint m_attr_name_length;
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/** Column ATTR_VALUE. In UTF-8 */
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char m_attr_value[MAX_ATTR_VALUE_CHARS * MAX_UTF8_BYTES];
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/** Length in bytes of @c m_attr_name. */
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uint m_attr_value_length;
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/** Column ORDINAL_POSITION. */
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ulong m_ordinal_position;
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};
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class table_session_connect : public cursor_by_thread_connect_attr
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{
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protected:
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table_session_connect(const PFS_engine_table_share *share);
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public:
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~table_session_connect();
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protected:
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virtual void make_row(PFS_thread *pfs, uint ordinal);
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virtual bool thread_fits(PFS_thread *thread);
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virtual int read_row_values(TABLE *table, unsigned char *buf,
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Field **fields, bool read_all);
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protected:
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/** Current row. */
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row_session_connect_attrs m_row;
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/** Safe copy of @c PFS_thread::m_session_connect_attrs. */
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char *m_copy_session_connect_attrs;
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/** Safe copy of @c PFS_thread::m_session_connect_attrs_length. */
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uint m_copy_session_connect_attrs_length;
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};
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/** @} */
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#endif
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