public void ReceiveCallback(IAsyncResult ar)
{
try
{
// Retrieve the state object and the client socket
// from the async state object.
DataStateObject state = (DataStateObject)ar.AsyncState;
Socket sock = state.workSocket;
// Read data from the remote device.
int bytesRead = sock.EndReceive(ar);
state.BytesTransfered += bytesRead;
if (bytesRead > 0)
{
// There might be more data, so store the data received so far.
string s = Encoding.ASCII.GetString(state.buffer, 0, bytesRead);
state.sb.Append(s);
if (state.sb.ToString().EndsWith(CRLF))
{
m_endTick = Environment.TickCount;
m_response = state.sb.ToString();
m_ftpmonitor.TransferCompleted(state.BytesTransfered, m_endTick - m_startTick);
}
else
{
// Get the rest of the data.
sock.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
new AsyncCallback(ReceiveCallback), state);
}
}
else
{
m_endTick = Environment.TickCount;
m_ftpmonitor.TransferCompleted(state.BytesTransfered, m_endTick - m_startTick);
}
}
catch (Exception e)
{
m_lasterror = e.Message;
ErrorNotify("DataAsyncSocket.ReceiveCallback");
}
}
