public static Signature Concat(Signature s1, Signature s2)
{
if (s1.data == null && s2.data == null)
{
return(Signature.Empty);
}
if (s1.data == null)
{
return(s2);
}
if (s2.data == null)
{
return(s1);
}
if (s1.Length + s2.Length == 0)
{
return(Signature.Empty);
}
byte[] data = new byte[s1.data.Length + s2.data.Length];
s1.data.CopyTo(data, 0);
s2.data.CopyTo(data, s1.data.Length);
return(Signature.Take(data));
}
public Signature ReadSignature()
{
byte ln = ReadByte();
// Avoid an array allocation for small signatures
if (ln == 1)
{
DType dtype = (DType)ReadByte();
ReadNull();
return(new Signature(dtype));
}
if (ln > Protocol.MaxSignatureLength)
{
throw new Exception("Signature length " + ln + " exceeds maximum allowed " + Protocol.MaxSignatureLength + " bytes");
}
byte[] sigData = new byte[ln];
Array.Copy(data, pos, sigData, 0, (int)ln);
pos += (int)ln;
ReadNull();
return(Signature.Take(sigData));
}