public AsyncTcpClient()
{
tcpClient = new TcpClient();
encoding = Encoding.Default;
Conected = false;
context = SynchronizationContext.Current;
commands = CommonUtil.Commands.None;
}
private void ReadCallback(IAsyncResult result)
{
int read;
string message = string.Empty;
NetworkStream networkStream;
try
{
networkStream = tcpClient.GetStream();
read = networkStream.EndRead(result);
}
catch
{
//An error has occured when reading
return;
}
if (read == 0)
{
//The connection has been closed.
return;
}
byte[] buffer = result.AsyncState as byte[];
try
{
if (commands == CommonUtil.Commands.None)
{
byteMessage.Clear();
byte[] length = new byte[4];
Array.Copy(buffer, length, 4);
uint i = length[0];
i = (i << 8) + length[1];
i = (i << 8) + length[2];
i = (i << 8) + length[3];
MessageLength = i + 4;
commands = CommonUtil.Commands.ReadMessage;
}
switch (commands)
{
case CommonUtil.Commands.ReadMessage:
byteMessage.AddRange(buffer);
GetLength += buffer.Length;
if (GetLength >= MessageLength)
{
byte[] inData = new byte[MessageLength];
Array.Copy(byteMessage.ToArray(), inData, inData.Length);
context.Post(new SendOrPostCallback(MessageCallBack), (object)inData);
commands = CommonUtil.Commands.None;
}
break;
}
}
catch
{
}
buffer = new byte[1024];
networkStream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(ReadCallback), buffer);
}
