public static extern int WsaSend(IntPtr socket, ref Net.WsaBuffer buffers, int bufferCount, ref int numberOfBytesSent, int flags, ref Net.WsaOverlapped overlapped, Net.WsaOverlappedCompleteRoutine lpCompletionRoutine);
public static extern int WsaRecv(IntPtr s, ref Net.WsaBuffer buffers, int bufferCount, ref int numberOfBytesRecvd, ref int flags, ref Net.WsaOverlapped overlapped, Net.WsaOverlappedCompleteRoutine completionRoutine);