private static async Task <KelinciData> ReadKelinciDataAsync(NetworkStream stream, CancellationToken token)
{
byte[] mode = new byte[1];
byte[] length = new byte[4];
try
{
//Read first Byte ==> Mode
int bytesRead = stream.Read(mode, 0, 1);
bool success = (bytesRead == 1);
Logger.Trace("{0} Mode bytes read", bytesRead);
//Read next 4 Bytes ==> Length
bytesRead = stream.Read(length, 0, 4);
success = success && (bytesRead == 4);
Logger.Trace("{0} Length bytes read", bytesRead);
//Read Bytes ==> Data
byte[] data = new byte[StaticHelper.ConvertLittleEndian(length)];
int i = 0;
while ((i != data.Length) && (!token.IsCancellationRequested))
{
i += await stream.ReadAsync(data, i, data.Length - i, token);
}
if (success)
{
return(new KelinciData(StaticHelper.ConvertLittleEndian(mode), StaticHelper.ConvertLittleEndian(length), data));
}
throw new IOException("ReadKelinciData failed");
}
catch (Exception e)
{
Logger.Error("Exception: {0}", e.ToString());
return(null);
}
}