public DryveMessage(UInt16 txnId, DryveObject dryveObject, ObjectAccess objectAccess, byte[] dataValue = null)
{
_txnId = txnId;
_dryveObject = dryveObject;
_objectAccess = objectAccess;
_dataValue = dataValue == null ? new byte[0] : dataValue;
MessageBytes = ConstructMessage();
}
private byte[] SendAndReceive(DryveObject messageType, int wait = 50, ObjectAccess accessType = ObjectAccess.Read, byte[] dataValue = null, ResultFormat format = ResultFormat.Binary)
{
DryveMessage msg = new DryveMessage(_txnId, messageType, accessType, dataValue);
byte[] message = msg.MessageBytes;
_txnId++;
_client.SendMessage(message);
System.Threading.Thread.Sleep(wait);
var msgLength = accessType == ObjectAccess.Read ? message.Length + (int)message[18] : 19;
var result = _client.ReceiveMessage(msgLength);
if (!result.Take(2).SequenceEqual(message.Take(2)))
{
throw new Exception("Communication error - Transaction ID mismatch.");
}
return(result);
}
