mysql5/mysql-5.7.27/plugin/connection_control/connection_control_data.h

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C++

/* Copyright (c) 2016, 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 CONNECTION_CONTROL_DATA_H
#define CONNECTION_CONTROL_DATA_H
#include <my_global.h>
/**
Enum for system variables : Must be in sync with
members of Connection_control_variables.
*/
typedef enum opt_connection_control
{
OPT_FAILED_CONNECTIONS_THRESHOLD= 0,
OPT_MIN_CONNECTION_DELAY,
OPT_MAX_CONNECTION_DELAY,
OPT_LAST /* Must be last */
}opt_connection_control;
/**
Enum for status variables : Must be in sync with
memebers of Connection_control_statistics.
*/
typedef enum stats_connection_control
{
STAT_CONNECTION_DELAY_TRIGGERED= 0,
STAT_LAST /* Must be last */
}stats_connection_control;
namespace connection_control
{
/** Structure to maintain system variables */
class Connection_control_variables
{
public:
/* Various global variables */
int64 failed_connections_threshold;
int64 min_connection_delay;
int64 max_connection_delay;
};
/** Structure to maintain statistics */
class Connection_control_statistics
{
public:
Connection_control_statistics()
{}
/* Various statistics to be collected */
volatile int64 stats_array[STAT_LAST];
};
}
extern connection_control::Connection_control_statistics g_statistics;
extern connection_control::Connection_control_variables g_variables;
#endif // !CONNECTION_CONTROL_DATA_H