func NewMysqlInstance(logger *pct.Logger, mysqlConn mysql.Connector, subscribers *Subscribers) (mi *MysqlInstance, err error) {
if err := mysqlConn.Connect(1); err != nil {
// 0. caller
// 1. monitor.Add()
// 2. monitor.createMysqlInstance()
// 3. here
return nil, err
}
defer mysqlConn.Close()
// Get current MySQL uptime - this is later used to detect if MySQL was restarted
lastUptime, err := mysqlConn.Uptime()
if err != nil {
// This shouldn't happen because we just opened the connection.
return nil, err
}
lastUptimeCheck := time.Now()
mi = &MysqlInstance{
logger: logger,
mysqlConn: mysqlConn,
Subscribers: subscribers,
lastUptime: lastUptime,
lastUptimeCheck: lastUptimeCheck,
}
return mi, nil
}
