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2017-12-28 Update 1 Add UdpConnector

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This commit is contained in:
parallelbgls
2017-12-28 14:03:43 +08:00
parent d0fbc22df6
commit 73223d70c2
8 changed files with 479 additions and 20 deletions
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8
Modbus.Net/Modbus.Net.Modbus/ModbusProtocolLinkerBytesExtend.cs
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@@ -5,6 +5,14 @@ using System.Text;
namespace Modbus.Net.Modbus
{
/// <summary>
/// Udp字节伸缩
/// </summary>
public class ModbusUdpProtocolLinkerBytesExtend : ModbusTcpProtocolLinkerBytesExtend
{
}
/// <summary>
/// Rtu透传字节伸缩
/// </summary>

45
Modbus.Net/Modbus.Net.Modbus/ModbusUdpProtocol.cs Normal file
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@@ -0,0 +1,45 @@
using System.Configuration;
namespace Modbus.Net.Modbus
{
/// <summary>
/// Modbus/Udp协议
/// </summary>
public class ModbusUdpProtocol : ModbusProtocol
{
/// <summary>
/// 构造函数
/// </summary>
/// <param name="slaveAddress">从站号</param>
/// <param name="masterAddress">主站号</param>
public ModbusUdpProtocol(byte slaveAddress, byte masterAddress)
: this(ConfigurationManager.AppSettings["IP"], slaveAddress, masterAddress)
{
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="ip">ip地址</param>
/// <param name="slaveAddress">从站号</param>
/// <param name="masterAddress">主站号</param>
public ModbusUdpProtocol(string ip, byte slaveAddress, byte masterAddress)
: base(slaveAddress, masterAddress)
{
ProtocolLinker = new ModbusUdpProtocolLinker(ip);
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="ip">ip地址</param>
/// <param name="port">端口</param>
/// <param name="slaveAddress">从站号</param>
/// <param name="masterAddress">主站号</param>
public ModbusUdpProtocol(string ip, int port, byte slaveAddress, byte masterAddress)
: base(slaveAddress, masterAddress)
{
ProtocolLinker = new ModbusUdpProtocolLinker(ip, port);
}
}
}

47
Modbus.Net/Modbus.Net.Modbus/ModbusUdpProtocolLinker.cs Normal file
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@@ -0,0 +1,47 @@
using System.Configuration;
namespace Modbus.Net.Modbus
{
/// <summary>
/// Modbus/Udp协议连接器
/// </summary>
public class ModbusUdpProtocolLinker : UdpProtocolLinker
{
/// <summary>
/// 构造函数
/// </summary>
/// <param name="ip">IP地址</param>
public ModbusUdpProtocolLinker(string ip)
: this(ip, int.Parse(ConfigurationManager.AppSettings["ModbusPort"] ?? "502"))
{
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="ip">IP地址</param>
/// <param name="port">端口</param>
public ModbusUdpProtocolLinker(string ip, int port) : base(ip, port)
{
((BaseConnector)BaseConnector).AddController(new FifoController(0));
}
/// <summary>
/// 校验返回数据
/// </summary>
/// <param name="content">设备返回的数据</param>
/// <returns>数据是否正确</returns>
public override bool? CheckRight(byte[] content)
{
//ProtocolLinker的CheckRight不会返回null
if (base.CheckRight(content) != true) return false;
//长度校验失败
if (content[5] != content.Length - 6)
throw new ModbusProtocolErrorException(500);
//Modbus协议错误
if (content[7] > 127)
throw new ModbusProtocolErrorException(content[2] > 0 ? content[2] : content[8]);
return true;
}
}
}

15
Modbus.Net/Modbus.Net.Modbus/ModbusUtility.cs
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@@ -33,6 +33,10 @@ namespace Modbus.Net.Modbus
/// Ascii连接Tcp透传
/// </summary>
AsciiInTcp = 4,
/// <summary>
/// Udp连接
/// </summary>
Udp = 5
}
/// <summary>
@@ -193,6 +197,17 @@ namespace Modbus.Net.Modbus
MasterAddress));
break;
}
//Udp协议
case ModbusType.Udp:
{
Wrapper = ConnectionString == null
? new ModbusUdpProtocol(SlaveAddress, MasterAddress)
: (ConnectionStringPort == null
? new ModbusUdpProtocol(ConnectionString, SlaveAddress, MasterAddress)
: new ModbusUdpProtocol(ConnectionStringIp, ConnectionStringPort.Value, SlaveAddress,
MasterAddress));
break;
}
}
}
}

29
Modbus.Net/Modbus.Net/SocketMessageEventArgs.cs Normal file
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@@ -0,0 +1,29 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Modbus.Net
{
/*
/// <summary>
/// Socket收到的数据
/// </summary>
public class SocketMessageEventArgs : EventArgs
{
/// <summary>
/// 构造器
/// </summary>
/// <param name="message">需要返回的信息</param>
public SocketMessageEventArgs(byte[] message)
{
Message = message;
}
/// <summary>
/// 返回的信息
/// </summary>
public byte[] Message { get; }
}*/
}

20
Modbus.Net/Modbus.Net/TcpConnector.cs
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@@ -8,26 +8,6 @@ using Serilog;
namespace Modbus.Net
{
/// <summary>
/// Socket收到的数据
/// </summary>
public class SocketMessageEventArgs : EventArgs
{
/// <summary>
/// 构造器
/// </summary>
/// <param name="message">需要返回的信息</param>
public SocketMessageEventArgs(byte[] message)
{
Message = message;
}
/// <summary>
/// 返回的信息
/// </summary>
public byte[] Message { get; }
}
/// <summary>
/// Socket收发类
/// 作者：本类来源于CSDN，并由罗圣（Chris L.）根据实际需要修改

287
Modbus.Net/Modbus.Net/UdpConnector.cs Normal file
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@@ -0,0 +1,287 @@
using System;
using System.Linq;
using System.Net.Sockets;
using System.Threading;
using System.Threading.Tasks;
using Nito.AsyncEx;
using Serilog;
namespace Modbus.Net
{
/// <summary>
/// Udp收发类
/// </summary>
public class UdpConnector : BaseConnector, IDisposable
{
private readonly string _host;
private readonly int _port;
/// <summary>
/// 1MB 的接收缓冲区
/// </summary>
private readonly byte[] _receiveBuffer = new byte[1024];
private int _errorCount;
private int _receiveCount;
private int _sendCount;
private UdpClient _socketClient;
private bool m_disposed;
private Task _receiveThread;
private bool _taskCancel = false;
/// <summary>
/// 构造器
/// </summary>
/// <param name="ipaddress">Ip地址</param>
/// <param name="port">端口</param>
/// <param name="timeoutTime">超时时间</param>
public UdpConnector(string ipaddress, int port, int timeoutTime = 10000) : base(timeoutTime)
{
_host = ipaddress;
_port = port;
}
/// <inheritdoc />
public override string ConnectionToken => _host;
/// <inheritdoc />
protected override int TimeoutTime { get; set; }
/// <inheritdoc />
public override bool IsConnected => _socketClient?.Client != null && _socketClient.Client.Connected;
/// <inheritdoc />
protected override AsyncLock Lock { get; } = new AsyncLock();
/// <inheritdoc />
public void Dispose()
{
Dispose(true);
//.NET Framework 类库
// GC..::.SuppressFinalize 方法
//请求系统不要调用指定对象的终结器。
GC.SuppressFinalize(this);
}
/// <summary>
/// 虚方法，可供子类重写
/// </summary>
/// <param name="disposing"></param>
protected virtual void Dispose(bool disposing)
{
if (!m_disposed)
{
if (disposing)
{
// Release managed resources
}
// Release unmanaged resources
if (_socketClient != null)
{
CloseClientSocket();
#if NET40 || NET45 || NET451 || NET452
_socketClient.Close();
#else
_socketClient.Dispose();
#endif
Log.Debug("Tcp client {ConnectionToken} Disposed", ConnectionToken);
}
m_disposed = true;
}
}
/// <summary>
/// 析构函数
/// 当客户端没有显示调用Dispose()时由GC完成资源回收功能
/// </summary>
~UdpConnector()
{
Dispose(false);
}
/// <inheritdoc />
public override async Task<bool> ConnectAsync()
{
using (await Lock.LockAsync())
{
if (_socketClient != null)
{
return true;
}
try
{
_socketClient = new UdpClient();
try
{
var cts = new CancellationTokenSource();
cts.CancelAfter(TimeoutTime);
await Task.Run(() => _socketClient.Connect(_host, _port), cts.Token);
}
catch (Exception e)
{
Log.Error(e, "Tcp client {ConnectionToken} connect error", ConnectionToken);
}
if (_socketClient.Client.Connected)
{
_taskCancel = false;
Controller.SendStart();
ReceiveMsgThreadStart();
Log.Information("Tcp client {ConnectionToken} connected", ConnectionToken);
return true;
}
Log.Error("Tcp client {ConnectionToken} connect failed.", ConnectionToken);
return false;
}
catch (Exception err)
{
Log.Error(err, "Tcp client {ConnectionToken} connect exception", ConnectionToken);
return false;
}
}
}
/// <inheritdoc />
public override bool Disconnect()
{
if (_socketClient == null)
return true;
try
{
Dispose();
Log.Information("Tcp client {ConnectionToken} disconnected successfully", ConnectionToken);
return true;
}
catch (Exception err)
{
Log.Error(err, "Tcp client {ConnectionToken} disconnected exception", ConnectionToken);
return false;
}
finally
{
_socketClient = null;
}
}
/// <inheritdoc />
protected override async Task SendMsgWithoutConfirm(byte[] message)
{
var datagram = message;
try
{
if (!IsConnected)
await ConnectAsync();
RefreshSendCount();
Log.Verbose("Tcp client {ConnectionToken} send text len = {Length}", ConnectionToken, datagram.Length);
Log.Verbose($"Tcp client {ConnectionToken} send: {String.Concat(datagram.Select(p => " " + p.ToString("X2")))}");
await _socketClient.SendAsync(datagram, datagram.Length);
}
catch (Exception err)
{
Log.Error(err, "Tcp client {ConnectionToken} send exception", ConnectionToken);
CloseClientSocket();
}
}
/// <inheritdoc />
protected override void ReceiveMsgThreadStart()
{
_receiveThread = Task.Run(ReceiveMessage);
}
/// <inheritdoc />
protected override void ReceiveMsgThreadStop()
{
_taskCancel = true;
}
/// <summary>
/// 接收返回消息
/// </summary>
/// <returns>返回的消息</returns>
protected async Task ReceiveMessage()
{
try
{
while (!_taskCancel)
{
var receive = await _socketClient.ReceiveAsync();
var len = receive.Buffer.Length;
// 异步接收回答
if (len > 0)
{
if (receive.Buffer.Clone() is byte[] receiveBytes)
{
Log.Verbose("Tcp client {ConnectionToken} receive text len = {Length}", ConnectionToken,
receiveBytes.Length);
Log.Verbose(
$"Tcp client {ConnectionToken} receive: {String.Concat(receiveBytes.Select(p => " " + p.ToString("X2")))}");
var isMessageConfirmed = Controller.ConfirmMessage(receiveBytes);
if (isMessageConfirmed == false)
{
//主动传输事件
}
}
}
RefreshReceiveCount();
}
}
catch (ObjectDisposedException)
{
//ignore
}
catch (Exception err)
{
Log.Error(err, "Tcp client {ConnectionToken} receive exception", ConnectionToken);
//CloseClientSocket();
}
}
private void RefreshSendCount()
{
_sendCount++;
Log.Verbose("Tcp client {ConnectionToken} send count: {SendCount}", ConnectionToken, _sendCount);
}
private void RefreshReceiveCount()
{
_receiveCount++;
Log.Verbose("Tcp client {ConnectionToken} receive count: {SendCount}", ConnectionToken, _receiveCount);
}
private void RefreshErrorCount()
{
_errorCount++;
Log.Verbose("Tcp client {ConnectionToken} error count: {ErrorCount}", ConnectionToken, _errorCount);
}
private void CloseClientSocket()
{
try
{
Controller.SendStop();
Controller.Clear();
ReceiveMsgThreadStop();
if (_socketClient.Client.Connected)
{
_socketClient?.Client.Disconnect(false);
}
_socketClient?.Close();
}
catch (Exception ex)
{
Log.Error(ex, "Tcp client {ConnectionToken} client close exception", ConnectionToken);
}
}
}
}

48
Modbus.Net/Modbus.Net/UdpProtocolLinker.cs Normal file
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@@ -0,0 +1,48 @@
using System.Configuration;
namespace Modbus.Net
{
/// <summary>
/// Udp连接对象
/// </summary>
public abstract class UdpProtocolLinker : ProtocolLinker
{
/// <summary>
/// 构造器
/// </summary>
protected UdpProtocolLinker(int port)
: this(ConfigurationManager.AppSettings["IP"], port)
{
}
/// <summary>
/// 构造器
/// </summary>
/// <param name="ip">Ip地址</param>
/// <param name="port">端口</param>
protected UdpProtocolLinker(string ip, int port)
: this(ip, port, int.Parse(ConfigurationManager.AppSettings["IPConnectionTimeout"] ?? "-1"))
{
}
/// <summary>
/// 构造器
/// </summary>
/// <param name="ip">Ip地址</param>
/// <param name="port">端口</param>
/// <param name="connectionTimeout">超时时间</param>
protected UdpProtocolLinker(string ip, int port, int connectionTimeout)
{
if (connectionTimeout == -1)
{
//初始化连接对象
BaseConnector = new UdpConnector(ip, port);
}
else
{
//初始化连接对象
BaseConnector = new UdpConnector(ip, port, connectionTimeout);
}
}
}
}