public static sbyte ReadSByte(this MemoryStream stream)
{
var res = BStruct.ToByte(stream.GetBuffer(), (int)stream.Position);
stream.Position += 1;
return(res);
}
public static double ReadDouble(this MemoryStream stream)
{
var res = BStruct.ToDouble(stream.GetBuffer(), (int)stream.Position);
stream.Position += 8;
return(res);
}
private static object DecodeDouble(string x, int startIndex, out int endIndex)
{
startIndex += 1;
endIndex = startIndex + 8;
return(BStruct.ToDouble(Util.StringBytes(x.Substring(startIndex, 8)), 0));
}
public static int ReadInt32(this MemoryStream stream)
{
var res = BStruct.ToInt32(stream.GetBuffer(), (int)stream.Position);
stream.Position += 4;
return(res);
}
private static object DecodeFloat(string x, int startIndex, out int endIndex)
{
startIndex += 1;
endIndex = startIndex + 4;
return(BStruct.ToFloat(Util.StringBytes(x.Substring(startIndex, 4)), 0));
}
private static object DecodeInt2(string x, int startIndex, out int endIndex)
{
startIndex += 1;
endIndex = startIndex + 2;
return(BStruct.ToInt2(Util.StringBytes(x.Substring(startIndex, 2)), 0));
}
public static long ReadInt64(this MemoryStream stream)
{
var res = BStruct.ToInt64(stream.GetBuffer(), (int)stream.Position);
stream.Position += 8;
return(res);
}
public static float ReadSingle(this MemoryStream stream)
{
var res = BStruct.ToFloat(stream.GetBuffer(), (int)stream.Position);
stream.Position += 4;
return(res);
}
/// <summary>
/// Unpack the string 'x' (network order byte format) into object.
/// </summary>
public static object Unpack(string x, int n)
{
x = Util.StringPad(x, n);
byte[] b = new byte[n];
for (int i = 0; i < x.Length; i++)
{
b[i] = (byte)x[i];
}
if (b.Length == 1)
{
return(BStruct.ToInt1(b, 0));
}
if (b.Length == 2)
{
return(BStruct.ToInt2(b, 0));
}
if (b.Length == 4)
{
return(BStruct.ToInt4(b, 0));
}
if (b.Length == 8)
{
return(BStruct.ToInt8(b, 0));
}
return(null);
}
public float ReadSingle()
{
ReadTypeCode(RencodeTypeCode.Single);
var buffer = new byte[4];
stream.Read(buffer, 0, buffer.Length);
return(BStruct.ToFloat(buffer, 0));
}
public long ReadInt64()
{
ReadTypeCode(RencodeTypeCode.Int64);
var buffer = new byte[8];
stream.Read(buffer, 0, buffer.Length);
return(BStruct.ToInt64(buffer, 0));
}
public int ReadInt32()
{
ReadTypeCode(RencodeTypeCode.Int32);
var buffer = new byte[4];
stream.Read(buffer, 0, buffer.Length);
return(BStruct.ToInt32(buffer, 0));
}
public short ReadInt16()
{
ReadTypeCode(RencodeTypeCode.Int16);
var buffer = new byte[2];
stream.Read(buffer, 0, buffer.Length);
return(BStruct.ToInt16(buffer, 0));
}
public double ReadDouble()
{
ReadTypeCode(RencodeTypeCode.Double);
var buffer = new byte[8];
stream.Read(buffer, 0, buffer.Length);
return(BStruct.ToDouble(buffer, 0));
}
public void Write(BigInteger value)
{
// Check to determine if long type is able
// to be packed inside an Int32 or is actually
// an Int64 value.
bool isLong = (value > int.MaxValue || value < int.MinValue);
if (!isLong && value >= 0 && value < RencodeConst.EncodedPositiveIntegerUpperBound)
{
stream.WriteByte((byte)((int)RencodeTypeCode.EncodedPositiveInteger + value));
}
else if (!isLong && value >= -RencodeConst.EncodedNegativeIntegerUpperBound && value < 0)
{
stream.WriteByte((byte)((int)RencodeTypeCode.EncodedNegativeInteger - 1 - value));
}
else if (!isLong && value >= sbyte.MinValue && value < sbyte.MaxValue)
{
stream.WriteByte((byte)RencodeTypeCode.SByte);
stream.WriteByte((byte)(sbyte)value);
}
else if (!isLong && value >= short.MinValue && value < short.MaxValue)
{
stream.WriteByte((byte)RencodeTypeCode.Int16);
byte[] bytes = BStruct.Pack((short)value);
stream.Write(bytes, 0, bytes.Length);
}
else if (value >= int.MinValue && value < int.MaxValue)
{
stream.WriteByte((byte)RencodeTypeCode.Int32);
byte[] bytes = BStruct.Pack((int)value);
stream.Write(bytes, 0, bytes.Length);
}
else if (value >= long.MinValue && value <= long.MaxValue)
{
stream.WriteByte((byte)RencodeTypeCode.Int64);
byte[] bytes = BStruct.Pack((long)value);
stream.Write(bytes, 0, bytes.Length);
}
else
{
string s = value.ToString(System.Globalization.CultureInfo.InvariantCulture);
if (s.Length >= RencodeConst.MaxBase10IntegerStringLength)
{
throw new ArgumentOutOfRangeException();
}
stream.WriteByte((byte)RencodeTypeCode.BigInteger);
byte[] encoded = Util.GetBytes(s);
stream.Write(encoded, 0, encoded.Length);
stream.WriteByte((byte)RencodeTypeCode.Termination);
}
}
private static void EncodeInt(object x, List <object> dest)
{
// Check to determine if long type is able
// to be packed inside an Int32 or is actually
// an Int64 value.
bool isLong = x is long && (((long)x) > int.MaxValue || ((long)x) < int.MinValue);
if (!isLong && 0 <= (int)x && (int)x < RencodeConst.INT_POS_FIXED_COUNT)
{
dest.Add((char)(RencodeConst.INT_POS_FIXED_START + (int)x));
}
else if (!isLong && -RencodeConst.INT_NEG_FIXED_COUNT <= (int)x && (int)x < 0)
{
dest.Add((char)(RencodeConst.INT_NEG_FIXED_START - 1 - (int)x));
}
else if (!isLong && -128 <= (int)x && (int)x < 128)
{
dest.Add(RencodeConst.CHR_INT1);
dest.Add(BStruct.Pack(x, 1));
}
else if (!isLong && -32768 <= (int)x && (int)x < 32768)
{
dest.Add(RencodeConst.CHR_INT2);
dest.Add(BStruct.Pack(x, 2));
}
else if (-2147483648L <= Convert.ToInt64(x) && Convert.ToInt64(x) < 2147483648L)
{
dest.Add(RencodeConst.CHR_INT4);
dest.Add(BStruct.Pack(x, 4));
}
else if (-9223372036854775808L < Convert.ToInt64(x) && Convert.ToInt64(x) < 9223372036854775807L)
{
dest.Add(RencodeConst.CHR_INT8);
dest.Add(BStruct.Pack(x, 8));
}
else
{
string s = (string)x;
if (s.Length >= RencodeConst.MAX_INT_LENGTH)
{
throw new ArgumentOutOfRangeException();
}
dest.Add(RencodeConst.CHR_INT);
dest.Add(s);
dest.Add(RencodeConst.CHR_TERM);
}
}
public void Write(double value)
{
stream.WriteByte((byte)RencodeTypeCode.Double);
byte[] bytes = BStruct.Pack(value);
stream.Write(bytes, 0, bytes.Length);
}
private static void EncodeDouble(object x, List <object> dest)
{
dest.Add(RencodeConst.CHR_FLOAT64);
dest.Add(BStruct.Pack(x, 8));
}
private static void EncodeFloat(object x, List <object> dest)
{
dest.Add(RencodeConst.CHR_FLOAT32);
dest.Add(BStruct.Pack(x, 4));
}
public static void Write(this MemoryStream stream, double x) => stream.Write(BStruct.Pack(x));