mariadb/storage/perfschema/table_replication_applier_status.h
Sergei Golubchik 15f60c1a73 5.7.13
2016-07-28 15:52:12 +02:00

108 lines
2.8 KiB
C++

/*
Copyright (c) 2013, 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 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, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef TABLE_REPLICATION_APPLIER_STATUS_H
#define TABLE_REPLICATION_APPLIER_STATUS_H
/**
@file storage/perfschema/table_replication_applier_status.h
Table replication_applier_status (declarations).
*/
#include "pfs_column_types.h"
#include "pfs_engine_table.h"
#include "rpl_mi.h"
#include "mysql_com.h"
#include "rpl_msr.h"
#include "rpl_info.h" /*CHANNEL_NAME_LENGTH*/
class Master_info;
/**
@addtogroup Performance_schema_tables
@{
*/
#ifndef ENUM_RPL_YES_NO
#define ENUM_RPL_YES_NO
/** enum values for Service_State field*/
enum enum_rpl_yes_no {
PS_RPL_YES= 1,
PS_RPL_NO
};
#endif
/** A row in the table. */
struct st_row_applier_status {
char channel_name[CHANNEL_NAME_LENGTH];
uint channel_name_length;
enum_rpl_yes_no service_state;
uint remaining_delay;
bool remaining_delay_is_set;
ulong count_transactions_retries;
};
/** Table PERFORMANCE_SCHEMA.replication_applier_status */
class table_replication_applier_status: public PFS_engine_table
{
private:
void make_row(Master_info *mi);
/** Table share lock. */
static THR_LOCK m_table_lock;
/** Fields definition. */
static TABLE_FIELD_DEF m_field_def;
/** Current row */
st_row_applier_status 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;
protected:
/**
Read the current row values.
@param table Table handle
@param buf row buffer
@param fields Table fields
@param read_all true if all columns are read.
*/
virtual int read_row_values(TABLE *table,
unsigned char *buf,
Field **fields,
bool read_all);
table_replication_applier_status();
public:
~table_replication_applier_status();
/** 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);
};
/** @} */
#endif