/// <summary>
/// Parses incoming buffer contai
/// </summary>
/// <param name="token">Client token information.</param>
/// <param name="buffer">Received buffer.</param>
/// <param name="bytesTransfered">Number of bytes transfered throught the network.</param>
public void ParseIncomingData(NetDataToken token, byte[] buffer, int bytesTransfered)
{
while (token.DataStartOffset < bytesTransfered)
{
int headerSize = this.PacketProcessor.HeaderSize;
if (token.ReceivedHeaderBytesCount < headerSize)
{
if (token.HeaderData == null)
{
token.HeaderData = new byte[headerSize];
}
int bufferRemainingBytes = bytesTransfered - token.DataStartOffset;
int headerRemainingBytes = headerSize - token.ReceivedHeaderBytesCount;
int bytesToRead = Math.Min(bufferRemainingBytes, headerRemainingBytes);
Buffer.BlockCopy(buffer, token.DataStartOffset, token.HeaderData, token.ReceivedHeaderBytesCount, bytesToRead);
token.ReceivedHeaderBytesCount += bytesToRead;
token.DataStartOffset += bytesToRead;
}
if (token.ReceivedHeaderBytesCount == headerSize && token.HeaderData != null)
{
if (!token.MessageSize.HasValue)
{
token.MessageSize = this.PacketProcessor.GetMessageLength(token.HeaderData);
}
if (token.MessageSize.Value < 0)
{
throw new InvalidOperationException("Message size cannot be smaller than zero.");
}
if (token.MessageData == null)
{
token.MessageData = new byte[token.MessageSize.Value];
}
if (token.ReceivedMessageBytesCount < token.MessageSize.Value)
{
int bufferRemainingBytes = bytesTransfered - token.DataStartOffset;
int messageRemainingBytes = token.MessageSize.Value - token.ReceivedMessageBytesCount;
int bytesToRead = Math.Min(bufferRemainingBytes, messageRemainingBytes);
Buffer.BlockCopy(buffer, token.DataStartOffset, token.MessageData, token.ReceivedMessageBytesCount, bytesToRead);
token.ReceivedMessageBytesCount += bytesToRead;
token.DataStartOffset += bytesToRead;
}
}
if (token.IsMessageComplete)
{
break;
}
}
token.DataStartOffset = 0;
}
/// <summary>
/// Builds the received message data based on the given data token.
/// </summary>
/// <param name="token">Client data token.</param>
/// <returns>Client received data.</returns>
private byte[] BuildClientMessageData(NetDataToken token)
{
var bufferSize = PacketProcessor.IncludeHeader ? PacketProcessor.HeaderSize + token.MessageSize.Value : token.MessageSize.Value;
var buffer = new byte[bufferSize];
if (PacketProcessor.IncludeHeader)
{
Array.Copy(token.HeaderData, 0, buffer, 0, PacketProcessor.HeaderSize);
Array.Copy(token.MessageData, 0, buffer, PacketProcessor.HeaderSize, token.MessageSize.Value);
}
else
{
Array.Copy(token.MessageData, 0, buffer, 0, token.MessageSize.Value);
}
return(buffer);
}
