public static int DecodeUInt(byte[] buf, int offset, int endBoundary, ref uint output)
{
var bytes = buf.Skip(offset).Take(endBoundary - offset).ToArray();
output = VarintBitConverter.ToUInt32(bytes);
return(VarintBitConverter.GetVarintBytes(output).Length);
}
public static int GetBytesLength <T>(T value, Encoding encoding = null)
{
var type = typeof(T);
if (type.IsValueType)
{
if (value is short)
{
short data = Convert.ToInt16(value);
return(VarintBitConverter.GetVarintBytes(data).Length);
}
else if (value is int)
{
int data = Convert.ToInt32(value);
return(VarintBitConverter.GetVarintBytes(data).Length);
}
else if (value is long)
{
long data = Convert.ToInt64(value);
return(VarintBitConverter.GetVarintBytes(data).Length);
}
else
{
ulong data = Convert.ToUInt64(value);
return(data < 128 ? 1 :
data < 16384 ? 2 :
data < 2097152 ? 3 :
data < 268435456 ? 4 :
data < 34359738368 ? 5 :
data < 4398046511104 ? 6 :
data < 562949953421312 ? 7 :
data < 72057594037927936 ? 8 :
data < 9223372036854775808 ? 9 : 10);
}
}
if (type == typeof(string))
{
if (encoding == null)
{
encoding = Encoding.Default;
}
int count = encoding.GetByteCount(Convert.ToString(value));
return(VarintBitConverter.GetBytesLength(count));
}
if (type == typeof(byte[]))
{
var bytes = value as byte[];
int count = bytes.Length;
return(VarintBitConverter.GetBytesLength(count));
}
throw new TypeAccessException("'" + type.FullName + "' cannot be converted to VarInt");
}
public static int EncodeUInt(uint value, ref byte[] output)
{
output = VarintBitConverter.GetVarintBytes(value);
return(output.Length);
}