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/* Copyright (c) 2012, 2013, 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 as published by
the Free Software Foundation; version 2 of the License.
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 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, Suite 500, Boston, MA 02110-1335 USA */
#ifndef TABLE_SESSION_CONNECT_H
#define TABLE_SESSION_CONNECT_H
#include "pfs_column_types.h"
#include "cursor_by_thread_connect_attr.h"
#include "table_helper.h"
#define MAX_ATTR_NAME_CHARS 32
#define MAX_ATTR_VALUE_CHARS 1024
#define MAX_UTF8_BYTES 6
/** symbolic names for field offsets, keep in sync with field_types */
enum field_offsets {
FO_PROCESS_ID,
FO_ATTR_NAME,
FO_ATTR_VALUE,
FO_ORDINAL_POSITION
};
/**
A row of PERFORMANCE_SCHEMA.SESSION_CONNECT_ATTRS and
PERFORMANCE_SCHEMA.SESSION_ACCOUNT_CONNECT_ATTRS.
*/
struct row_session_connect_attrs
{
/** Column PROCESS_ID. */
ulong m_process_id;
/** Column ATTR_NAME. In UTF-8 */
char m_attr_name[MAX_ATTR_NAME_CHARS * MAX_UTF8_BYTES];
/** Length in bytes of @c m_attr_name. */
uint m_attr_name_length;
/** Column ATTR_VALUE. In UTF-8 */
char m_attr_value[MAX_ATTR_VALUE_CHARS * MAX_UTF8_BYTES];
/** Length in bytes of @c m_attr_name. */
uint m_attr_value_length;
/** Column ORDINAL_POSITION. */
ulong m_ordinal_position;
};
class table_session_connect : public cursor_by_thread_connect_attr
{
protected:
table_session_connect(const PFS_engine_table_share *share);
public:
~table_session_connect();
protected:
virtual void make_row(PFS_thread *pfs, uint ordinal);
virtual bool thread_fits(PFS_thread *thread);
virtual int read_row_values(TABLE *table, unsigned char *buf,
Field **fields, bool read_all);
protected:
/** Fields definition. */
static TABLE_FIELD_DEF m_field_def;
/** Current row. */
row_session_connect_attrs m_row;
/** Safe copy of @c PFS_thread::m_session_connect_attrs. */
char *m_copy_session_connect_attrs;
/** Safe copy of @c PFS_thread::m_session_connect_attrs_length. */
uint m_copy_session_connect_attrs_length;
};
/** @} */
#endif
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