private void SocketReceiveMsg()
{
byte[] buffer = new byte[1024 * 1024];
int n;
String s;
while (true)
{
if (isTerminating)
{
break;
}
if (mySocket == null)
{
break;
}
try
{
n = mySocket.Receive(buffer);
s = StringByteHelper.BytesToString(buffer, 0, n);
ReceiveMsg(s);
virtualDeviceManager.receiveMsg(this, s);
}
catch (Exception ex)
{
}
}
}
public static string forshow(string msg)
{
string tmp;
byte[] tmp2;
tmp2 = StringByteHelper.StringToBytes(msg);
tmp = Encoding.GetEncoding("gb2312").GetString(tmp2, 5, tmp2.Length - 6);
return(tmp);
}
public override void SendMsg(String s)
{
lock (mySocket)
{
if (mySocket != null)
{
try
{
byte[] buffer = StringByteHelper.StringToBytes(s);
mySocket.Send(buffer);
virtualDeviceManager.sendMsg(this, s);
}
catch (Exception ex)
{
}
}
}
}
public static String createModbusMessage(byte func, byte[] data, byte dev = 0x88)
{
byte[] cmd = new byte[6 + data.Length];
cmd[0] = 0x55;
cmd[1] = 0xAA;
cmd[2] = (byte)(data.Length + 3);
cmd[3] = dev;
cmd[4] = func;
for (int i = 0; i < data.Length; i++)
{
cmd[i + 5] = data[i];
}
byte crc = 0x00;
for (int i = 0; i < data.Length + 5; i++)
{
crc ^= cmd[i];
}
cmd[data.Length + 5] = crc;
return(StringByteHelper.BytesToString(cmd, 0, cmd.Length));
}
public static ModbusMessage decodeModbusMessage(String msg)
{
ModbusMessage res = new ModbusMessage();
byte[] cmd = StringByteHelper.StringToBytes(msg);
if (!check_modbus_message(cmd))
{
return(null);
}
res.Dev = cmd[3];
res.MsgType = ModbusMessage.byteToMessageType(cmd[4]);
int len = cmd[2] - 3;
byte[] data = new byte[len];
for (int i = 0; i < len; i++)
{
data[i] = cmd[i + 5];
}
String s = Encoding.Default.GetString(data);
Hashtable map = new Hashtable();
String[] words = s.Split(';');
String[] parts;
for (int i = 0; i < words.Length; i++)
{
if (words[i].Length == 0)
{
continue;
}
parts = words[i].Split('=');
if (parts.Length != 2)
{
return(null);
}
map.Add(parts[0], parts[1]);
}
res.Data = map;
return(res);
}