static void AsyncReceiveCallback(IAsyncResult result)
{
SocketAndBuffer c = result.AsyncState as SocketAndBuffer;
try
{
int length = c.s.EndReceive(result);
if (length != 0)
{
Console.WriteLine(DateTime.Now + " receive buffer " + GetBufferIndex(c.buffer, length) + ", length " + length);
Thread.Sleep(20);
BeginReceive(c.s);
}
else
{
c.s.Close();
}
}
catch (Exception ex)
{
c.s.Close();
Console.WriteLine(ex.ToString());
}
}
static void BeginReceive(Socket s)
{
byte[] buffer = new byte[8 * 1024];
var state = new SocketAndBuffer();
state.s = s;
state.buffer = buffer;
s.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None,
AsyncReceiveCallback, state);
}