// ------------------------- ReceiveCallback -------------------------
// receive MailMessage in background thread.
private void ReceiveCallback(IAsyncResult InResult)
{
try
{
// Retrieve the state object and the client socket
// from the asynchronous state object.
Pop3StateObject sockThreadState =
(Pop3StateObject)InResult.AsyncState;
SocketExchange sockEx = sockThreadState.SockEx;
Socket client = sockEx.ConnectedSocket;
SecureSocket secureSock = sockEx.ConnectedSecureSocket;
bool InlRcv = true;
while (true)
{
// receive from the socket.
int ReadCx;
if (InlRcv == true)
{
if (client != null)
{
ReadCx = client.EndReceive(InResult);
}
else
{
ReadCx = secureSock.EndReceive(InResult);
}
}
else
{
if (client != null)
{
ReadCx = client.Receive(
sockThreadState.buffer, 0, Pop3StateObject.BufferSize, SocketFlags.None);
}
else
{
ReadCx = secureSock.Receive(
sockThreadState.buffer, 0, Pop3StateObject.BufferSize, SocketFlags.None);
}
}
InlRcv = false;
// did not receive anything. probably should leave.
if (ReadCx == 0)
{
break;
}
// There might be more data,
// so store the data received so far.
string block = Encoding.ASCII.GetString(sockThreadState.buffer, 0, ReadCx);
sockThreadState.sb.Append(block);
// is this the end of the message
if (Stringer.Tail(sockThreadState.sb, 5) == "\r\n.\r\n")
{
break;
}
}
}
catch (Exception e)
{
throw new
Pop3ReceiveException(
"ReceiveCallback error" +
e.ToString( ));
}
finally
{
m_manualEvent.Set( );
}
}
