public void FromLowLayerToHere(DataContent dataContent)
{
byte[] seqHeader;
byte[] body;
int seq;
// it is a state only packet
if (dataContent.Data == null)
{
NextHighLayerEvent?.Invoke(dataContent);
return;
}
try
{
// parse header
seqHeader = ((byte[])dataContent.Data).Take(4).ToArray();
body = ((byte[])dataContent.Data).Skip(4).ToArray();
seq = BitConverter.ToInt32(seqHeader);
// remove header from dataContent
dataContent.Data = body;
// init
if (_receiveWindow == null)
{
_receiveWindow = new SlidingWindow(seq, _windowSize);
}
// check validation
if (!_receiveWindow.IsValid(seq))
{
dataContent.IsAckWrong = true;
}
// update
_receiveWindow.Update(seq);
}
catch (Exception)
{
dataContent.IsAckWrong = true;
}
NextHighLayerEvent?.Invoke(dataContent);
}
