Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** 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; either version 2 of the License, or

** (at your option) any later version.

**

** 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

/*

** We use the library go-modbus (goburrow/modbus), which is

** distributed under the terms of the 3-Clause BSD License

** available at https://github.com/goburrow/modbus/blob/master/LICENSE

**/

​

package modbus

​

import (

    "fmt"

    "time"

​

    "encoding/binary"

​

    "git.zabbix.com/ap/plugin-support/conf"

    "git.zabbix.com/ap/plugin-support/plugin"

    named "github.com/BurntSushi/locker"

    "github.com/goburrow/modbus"

    mblib "github.com/goburrow/modbus"

)

​

// Plugin -

type Plugin struct {

    plugin.Base

    options PluginOptions

}

​

//Session struct

type Session struct {

    // Endpoint is a connection string consisting of a protocol scheme, a host address and a port or seral port name and attributes.

    Endpoint string `conf:"optional"`

​

    // SlaveID of modbus devices.

    SlaveID string `conf:"optional"`

​

    // Timeout of modbus devices.

    Timeout int `conf:"optional"`

}

​

// PluginOptions -

type PluginOptions struct {

    // Timeout is the maximum time for waiting when a request has to be done. Default value equals the global timeout.

    Timeout int `conf:"optional,range=1:30"`

​